RE: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-29 Thread Guido Hecken
 On Fri, 26 May 2006, Guido Hecken wrote:
  We had the same problems with some cheap LevelOne Switches.
  The Snoms rebooted during a call, calls dropped etc.
  Replacing the switches was the solution.
 
 A switch should NEVER cause ANY device to lockup, ever. Period.
 If a phone locks up / reboots due to something a switch sends, then the
 phone is faulty.
 
Okay, it shouldn't reboot if not told to do so but a switch with e.g.
corrupt mac tables can bring your whole network down and the phone has no
chance too. 
However, if the SNOMS still reboot with the follwing settings attached, I
would also think of a possible bug in the firmware.
Setup/Advanced

Detect Ethernet Cable Unplug: off  
Action on Ethernet cable replug: ignore

Guido

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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-29 Thread Tommaso Calosi

Guido Hecken wrote:

I looked long and hard at the LAN and it was basically narrowed down to


the
  

switches. In this smaller install, several cheapo Dlink ($30) switches
de-aggregate a Cisco Catalyst switch. What I noticed was that any phone
plugged direcly into the Catalyst did *not* lock up or reboot. Any phone
plugged into the crap switches experienced the lockup. So now we are down


to
  

the cheap switches themselves. We are nuking the Dlink switches and
replacing them with 3com workgroup switches, same as what we use in the
large install to good effect, and I fully expect the problem to dissapear.



We had the same problems with some cheap LevelOne Switches.
The Snoms rebooted during a call, calls dropped etc.
Replacing the switches was the solution.

Guido
 
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I have moved to 3com switches,but  the Snom 320 still locks up, and also 
I don't think it's reasonable to force customers to buy 3com just 
because Snom firmware sucks.

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Re[2]: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-29 Thread Alessio Focardi
Hi, Ciao

I have a bunch ( 30) 320's connected to HP switches, fw version 6.0.4

They work great but occasionally they where signalling the warning network
cable disconnected.






Monday, May 29, 2006, 10:38:09 AM, you wrote:

TC Guido Hecken wrote:
 I looked long and hard at the LAN and it was basically narrowed down to
 
 the
   
 switches. In this smaller install, several cheapo Dlink ($30) switches
 de-aggregate a Cisco Catalyst switch. What I noticed was that any phone
 plugged direcly into the Catalyst did *not* lock up or reboot. Any phone
 plugged into the crap switches experienced the lockup. So now we are down
 
 to
   
 the cheap switches themselves. We are nuking the Dlink switches and
 replacing them with 3com workgroup switches, same as what we use in the
 large install to good effect, and I fully expect the problem to dissapear.
 

 We had the same problems with some cheap LevelOne Switches.
 The Snoms rebooted during a call, calls dropped etc.
 Replacing the switches was the solution.

 Guido
  
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TC I have moved to 3com switches,but  the Snom 320 still locks up, and also
TC I don't think it's reasonable to force customers to buy 3com just 
TC because Snom firmware sucks.
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-- 
Best regards,
 Alessiomailto:[EMAIL PROTECTED]

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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-29 Thread Denis Smirnov
On Thu, May 25, 2006 at 04:42:57PM -0600, Colin Anderson wrote:

CA I looked long and hard at the LAN and it was basically narrowed down to the
CA switches. In this smaller install, several cheapo Dlink ($30) switches

What switches you mean? How they named?

-- 
JID: [EMAIL PROTECTED]
ICQ: 58417635 (please, use jabber, if you can)

http://freesource.info/

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RE: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-28 Thread asterisk

On Fri, 26 May 2006, Guido Hecken wrote:

We had the same problems with some cheap LevelOne Switches.
The Snoms rebooted during a call, calls dropped etc.
Replacing the switches was the solution.


A switch should NEVER cause ANY device to lockup, ever. Period.
If a phone locks up / reboots due to something a switch sends, then the 
phone is faulty.


-Dan
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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-28 Thread asterisk

On Fri, 26 May 2006, Rich Adamson wrote:

Dr. Michael J. Chudobiak wrote:
Blaming the 3com switch is very likely to be the wrong root cause. High 
probability the 3com was not configured properly for the phone.

Just curious - what configuration issues did you have in mind?

A partial list of issues that we've seen in the last 12 years include:
- auto negotiation of duplex settings (mismatch)
- spanning tree disabling ports for first 30 seconds after any link state 
change (some attached devices don't like that)
- spanning tree loops that end up isolating devices from the backbone 
(spanning tree is usually implemented by the manufacture by default)
- various switch manufacturers have licensed/implemented cisco's discovery 
protocol, and the user doesn't realize some equipment attached to such ports 
actually use the cdp data to change port configuration, while other devices 
might barf on those packets.
- assumptions that all switches operate at wire speeds and buffer packets 
(eg, no such thing as a switch buffer; packets will be dropped under high 
load conditions)
- distributing vlans across multiple switches where assumptions are made 
relative to what happens when two or more vlans are transporting traffic 
volumes that when combined exceed a trunk's port speed (eg, don't forget 
about broadcast storms).
- switch forwarding tables that are too small (eg, workgroup switches) and 
the table fills, essentially turning the switch into a hub
- bad assumptions relative to rate limiting broadcast and multicast packets, 
and how that impacts normal traffic.

- etc, etc.


If any of these issues makes a _phone reboot or lockup_ then that is a 
serious flaw with the phone.


I migh expect a cheapy grandstream to have issues but expensive snom 
should really do better.


-Dan
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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-28 Thread asterisk

On Fri, 26 May 2006, Remco Barende wrote:
There is just no valid reason why the phone would need to lockup or reboot 
even if the network connection would be problematic, no matter what. That is 
just poor design, not a feature.


I agree 100%. No device should ever lockup or reboot due to a marginal 
connection.


-Dan
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RE: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Remco Barende



Changing firmware revs did not help, so that left the LAN.

I looked long and hard at the LAN and it was basically narrowed down to the
switches. In this smaller install, several cheapo Dlink ($30) switches
de-aggregate a Cisco Catalyst switch. What I noticed was that any phone
plugged direcly into the Catalyst did *not* lock up or reboot. Any phone
plugged into the crap switches experienced the lockup. So now we are down to
the cheap switches themselves. We are nuking the Dlink switches and
replacing them with 3com workgroup switches, same as what we use in the
large install to good effect, and I fully expect the problem to dissapear.

It's unfortunate that Snoms have a propensity to freak out in certain
environments but I don't think it would preclude me from using Snom in the
future. As long as one is aware of this issue, it should be easy enough to
work around.


Thanks for your input!

Previously I was using Nortel 10/100 switches, I replaced them some 
weeks ago with 3C16479 gbit switches. The phones are connected directly to 
the gbit switches. By coincidence I dit notice on one phone that in a 
split second a message appeared 'Ethernet cable disconnected'. Because I 
have cable unplug set to ignore the conversation was not interrupted and 
the conversation could continue.


But that still doesn't solve the occasional lockup.

One phone was giving me *lots* more reboots than others but that was due 
to it running firmware 6.0.4 without having the ramdisk converted to jffs. 
Apparently the firmware didn't like that at all or just runs out of 
memory and decides to reboot.


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RE: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Guido Hecken
 
 I looked long and hard at the LAN and it was basically narrowed down to
the
 switches. In this smaller install, several cheapo Dlink ($30) switches
 de-aggregate a Cisco Catalyst switch. What I noticed was that any phone
 plugged direcly into the Catalyst did *not* lock up or reboot. Any phone
 plugged into the crap switches experienced the lockup. So now we are down
to
 the cheap switches themselves. We are nuking the Dlink switches and
 replacing them with 3com workgroup switches, same as what we use in the
 large install to good effect, and I fully expect the problem to dissapear.

We had the same problems with some cheap LevelOne Switches.
The Snoms rebooted during a call, calls dropped etc.
Replacing the switches was the solution.

Guido
 
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RE: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Dave Cotton
On Fri, 2006-05-26 at 10:11 +0200, Remco Barende wrote:

 Thanks for your input!
 
 Previously I was using Nortel 10/100 switches, I replaced them some 
 weeks ago with 3C16479 gbit switches. The phones are connected directly to 
 the gbit switches. By coincidence I dit notice on one phone that in a 
 split second a message appeared 'Ethernet cable disconnected'. Because I 
 have cable unplug set to ignore the conversation was not interrupted and 
 the conversation could continue.
 
 But that still doesn't solve the occasional lockup.
 
 One phone was giving me *lots* more reboots than others but that was due 
 to it running firmware 6.0.4 without having the ramdisk converted to jffs. 
 Apparently the firmware didn't like that at all or just runs out of 
 memory and decides to reboot.

Looks like you're getting somewhere now. That was my real complaint xyz
sucks helps no one. As I said in my reply I've never had such problems
with SNOM, perhaps it's because I've always used decent switches.


-- 
Dave Cotton [EMAIL PROTECTED]

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RE: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Remco Barende

On Fri, 26 May 2006, Dave Cotton wrote:


On Fri, 2006-05-26 at 10:11 +0200, Remco Barende wrote:


Thanks for your input!

Previously I was using Nortel 10/100 switches, I replaced them some
weeks ago with 3C16479 gbit switches. The phones are connected directly to
the gbit switches. By coincidence I dit notice on one phone that in a
split second a message appeared 'Ethernet cable disconnected'. Because I
have cable unplug set to ignore the conversation was not interrupted and
the conversation could continue.

But that still doesn't solve the occasional lockup.


Looks like you're getting somewhere now. That was my real complaint xyz
sucks helps no one. As I said in my reply I've never had such problems
with SNOM, perhaps it's because I've always used decent switches.


You mean that 3Com switches are not to be regarded as decent switches? At 
least Snom could have put some remark then that you need a certain brand 
of switches.  If 3Com is not good enough for the phones I would have 
bought different phones.

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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Dr. Michael J. Chudobiak

I looked long and hard at the LAN and it was basically narrowed down to the
switches. In this smaller install, several cheapo Dlink ($30) switches
de-aggregate a Cisco Catalyst switch. What I noticed was that any phone
plugged direcly into the Catalyst did *not* lock up or reboot. Any phone
plugged into the crap switches experienced the lockup. So now we are down to
the cheap switches themselves. We are nuking the Dlink switches and
replacing them with 3com workgroup switches, same as what we use in the
large install to good effect, and I fully expect the problem to dissapear. 


So does anyone have any theories as to what the technical difference 
between a good switch and a bad or cheapo switch actually is? 
Lower latency? Better grounding? More cowbell?


- Mike
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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Rich Adamson

Remco Barende wrote:

On Fri, 26 May 2006, Dave Cotton wrote:


On Fri, 2006-05-26 at 10:11 +0200, Remco Barende wrote:


Thanks for your input!

Previously I was using Nortel 10/100 switches, I replaced them some
weeks ago with 3C16479 gbit switches. The phones are connected 
directly to

the gbit switches. By coincidence I dit notice on one phone that in a
split second a message appeared 'Ethernet cable disconnected'. Because I
have cable unplug set to ignore the conversation was not interrupted and
the conversation could continue.

But that still doesn't solve the occasional lockup.


Looks like you're getting somewhere now. That was my real complaint xyz
sucks helps no one. As I said in my reply I've never had such problems
with SNOM, perhaps it's because I've always used decent switches.


You mean that 3Com switches are not to be regarded as decent switches? 
At least Snom could have put some remark then that you need a certain 
brand of switches.  If 3Com is not good enough for the phones I would 
have bought different phones.


Blaming the 3com switch is very likely to be the wrong root cause. High 
probability the 3com was not configured properly for the phone.



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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Jerry Jones
I would like to suggest using any managed switch and hard setting the  
ports to 100/full


I have found that the auto negotiation algorithm is generally to  
blame on many switches.


As an example, connecting a cisco router to a netgear/dlink/3com/etc  
will geneerate errors on the cisco interface. connecting cisco to  
cisco does not. connectig netgear/dlink etc does not.


But disabling auto makes all play nice together.


On May 26, 2006, at 7:38 AM, Rich Adamson wrote:


Remco Barende wrote:

On Fri, 26 May 2006, Dave Cotton wrote:

On Fri, 2006-05-26 at 10:11 +0200, Remco Barende wrote:


Thanks for your input!

Previously I was using Nortel 10/100 switches, I replaced them some
weeks ago with 3C16479 gbit switches. The phones are connected  
directly to
the gbit switches. By coincidence I dit notice on one phone that  
in a
split second a message appeared 'Ethernet cable disconnected'.  
Because I
have cable unplug set to ignore the conversation was not  
interrupted and

the conversation could continue.

But that still doesn't solve the occasional lockup.

Looks like you're getting somewhere now. That was my real  
complaint xyz
sucks helps no one. As I said in my reply I've never had such  
problems

with SNOM, perhaps it's because I've always used decent switches.
You mean that 3Com switches are not to be regarded as decent  
switches? At least Snom could have put some remark then that you  
need a certain brand of switches.  If 3Com is not good enough for  
the phones I would have bought different phones.


Blaming the 3com switch is very likely to be the wrong root cause.  
High probability the 3com was not configured properly for the phone.



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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Dr. Michael J. Chudobiak
Blaming the 3com switch is very likely to be the wrong root cause. High 
probability the 3com was not configured properly for the phone.


Just curious - what configuration issues did you have in mind?

- Mike
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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Rich Adamson

Dr. Michael J. Chudobiak wrote:
I looked long and hard at the LAN and it was basically narrowed down 
to the

switches. In this smaller install, several cheapo Dlink ($30) switches
de-aggregate a Cisco Catalyst switch. What I noticed was that any phone
plugged direcly into the Catalyst did *not* lock up or reboot. Any phone
plugged into the crap switches experienced the lockup. So now we are 
down to

the cheap switches themselves. We are nuking the Dlink switches and
replacing them with 3com workgroup switches, same as what we use in the
large install to good effect, and I fully expect the problem to 
dissapear. 


So does anyone have any theories as to what the technical difference 
between a good switch and a bad or cheapo switch actually is? 
Lower latency? Better grounding? More cowbell?


By far, the majority of switches on the market today will work just fine 
for VoIP. Past professional experience dictates (in my mind) that a 
managed switch is the only reasonable approach for any network larger 
then a home office.


There are some inexpensive switches being sold that are less then 
adequate for business use. For example, Dell rebranded and sold some 
switches about two years ago that would reboot if an html packet hit the 
manager IP address; didn't even have to be a crafted packet. Cabletron 
sold a number of models that would auto reboot at random intervals. HP 
had some issues with early firmware that essentially resulted in reboots 
(it was fixed in later firmware versions).


Our company conducts professional network performance, security, and 
voip readniness assessments, and have worked with corporations and 
institutions in over 40 US states in the last 12 years. We constantly 
see folks making assumptions about how switches function that are far 
less then accurate.  One example is leaving switch ports to auto 
negotiate duplex settings. Roughly 50% of the time the switch (and/or 
device attached to the switch) will get it wrong; one will be full 
duplex while the other ends up half duplex. That one item will have a 
serious impact on voip quality.


The only way to ensure a solid network infrastructure is to use switches 
that are manageable, and there are now lots of inexpensive switches on 
the market that are manageable. In very general terms, the higher the 
cost of the switch, the more functionality one receives.


Also in very general terms, the larger the network, the more 
functionality one needs within the switches. In other words, a network 
with several hundred switch ports likely requires switches with the 
capability of supporting vlans, packet queuing/prioritization, etc. 
Small networks (eg, low traffic volumes) in most cases do not need those 
same functions.


So, your choice of switches is highly dependent on the size of network 
that your working with.


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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Andrew D Kirch

Dr. Michael J. Chudobiak wrote:
Blaming the 3com switch is very likely to be the wrong root cause. 
High probability the 3com was not configured properly for the phone.


Just curious - what configuration issues did you have in mind?

- Mike

Replacing it with a Catalyst?
Andrew
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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Rich Adamson

Dr. Michael J. Chudobiak wrote:
Blaming the 3com switch is very likely to be the wrong root cause. 
High probability the 3com was not configured properly for the phone.


Just curious - what configuration issues did you have in mind?


A partial list of issues that we've seen in the last 12 years include:
- auto negotiation of duplex settings (mismatch)
- spanning tree disabling ports for first 30 seconds after any link 
state change (some attached devices don't like that)
- spanning tree loops that end up isolating devices from the backbone 
(spanning tree is usually implemented by the manufacture by default)
- various switch manufacturers have licensed/implemented cisco's 
discovery protocol, and the user doesn't realize some equipment attached 
to such ports actually use the cdp data to change port configuration, 
while other devices might barf on those packets.
- assumptions that all switches operate at wire speeds and buffer 
packets (eg, no such thing as a switch buffer; packets will be dropped 
under high load conditions)
- distributing vlans across multiple switches where assumptions are made 
relative to what happens when two or more vlans are transporting traffic 
volumes that when combined exceed a trunk's port speed (eg, don't forget 
about broadcast storms).
- switch forwarding tables that are too small (eg, workgroup switches) 
and the table fills, essentially turning the switch into a hub
- bad assumptions relative to rate limiting broadcast and multicast 
packets, and how that impacts normal traffic.

- etc, etc.

In the case of switch forwarding tables, its very common to see 
experienced engineers (and others) assume a workgroup switch can be 
used in a large network environment where 23 ports are used for devices 
within a small workgroup.  However, all switches on the market listen 
for traffic from any source (including upstream link), and populates 
the switch forwarding table with the mac addresses observed. Most 
workgroup switches are limited to 1,024 table entries (sometimes 
less), and when that table is full, does something that is vendor 
dependent. Some vendors actually clear the table (resulting in the 
switch operating as a hub until the table is rebuilt again), while other 
vendors replace the oldest entries with the newest mac address observed. 
Some vendors will timeout table entries in very short periods of time. 
The end result from those actions is packets appearing on switch ports 
for which the attached device has no need to hear (eg, increases the 
packet traffic on a per port basis).


There are lots of other cases where a switch will forward multicast 
packets to all ports (eg, poor/incorrect multicast support), and the 
device attached to the port isn't designed to handle such packets. For 
example, MS systems (and others) spew UPNP multicast packets looking for 
or advertising gateways and other network resources. If a Snom device 
hasn't been programmed correctly to ignore such packets, it might roll 
over (I don't have a clue if that example is reasonable or even 
accurate; its just an example only). Changing from one vendor's switch 
to another might lead one to believe the switch was at fault, when in 
fact the problem is more related to the switch implementor not properly 
configuring the first switch. (And, in most cases, the implementor 
doesn't have a clue what type of packets are flowing across the network, 
let along which ones result in problems for attached devices.)


R.

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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Rich Adamson

Andrew D Kirch wrote:

Dr. Michael J. Chudobiak wrote:
Blaming the 3com switch is very likely to be the wrong root cause. 
High probability the 3com was not configured properly for the phone.


Just curious - what configuration issues did you have in mind?

- Mike

Replacing it with a Catalyst?


Most of the catalyst switches are pretty good. Some of the older ones 
have had problems with truly supporting traffic volumes that approach 
100% of a port's speed.


Some catalyst switches do have queue/prioritization. The less expensive 
ones only support three queues while more expensive ones support greater 
numbers of queues. Some support the bits in the IP packet header that 
were intended to influence priority, while other models ignore those 
bits but implement prioritization on a per-port basis (which basically 
assumes one device per port).



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RE: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Colin Anderson
More cowbell?

Shit, you owe me a new keyboard! Funniest thing I've *ever* read on the
list. 

I've experienced the auto-negotiate issue with Snom's before. I forgot to
mention that we make it part of our standard install to force 100baseT-full.
I've also noticed the Catalyst does the spanning-tree thing and waits up to
30 seconds before  enabling the port - this can cause problems with Snoms
because they boot before the Catalyst enables the port, causing registration
to fail. Then you warm-boot the Snom and everything's OK. 

One last interesting tidbit: We have a *lot* of Dell Dimensions with super
craptastic embedded Ethernet. They will auto negotiate with a Snom (plugged
into the PC port) to 100baseT full, but then you can't ping or TX past the
phone itself. Oddly enough, it gets an IP from our DHCP server OK. Forcing
the Dell to 100baseT full, half, or even 10 full works 100% of the time.
This never happens on any kind of decent Ethernet card like an 82557 chip or
3com. If we have an Optiplex, it *just works*

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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Remco Barende

On Fri, 26 May 2006, Rich Adamson wrote:

You mean that 3Com switches are not to be regarded as decent switches? At 
least Snom could have put some remark then that you need a certain brand of 
switches.  If 3Com is not good enough for the phones I would have bought 
different phones.


Blaming the 3com switch is very likely to be the wrong root cause. High 
probability the 3com was not configured properly for the phone.


The 3C16479 is a non-configurable, non-managed 3Com workgroup gbit 
switch. It is directly connected to the asterisk server with one cable, 
the phones are connected to the other ports.  There is nothing to 
configure on the switch.


Maybe I need to change my opinion, it's not only the firmware that sucks, 
if the ethernet chip on the phone is this oversensitive I guess 
the same would apply for the hardware.


There is just no valid reason why the phone would need to lockup or reboot 
even if the network connection would be problematic, no matter what. 
That is just poor design, not a feature.

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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Olivier Krief
>From my point of view, using cheap or expensive switch is not the point.The point is what kind of switch implementation Snom phones require ?.Up to now, it seems that problems relate to auto-negociation.
Would it be possible for anyone to check that, comparing fixed and auto-negociated behaviours on the same cheap or descent switch ?Cheers
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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Rich Adamson

Remco Barende wrote:

On Fri, 26 May 2006, Rich Adamson wrote:

You mean that 3Com switches are not to be regarded as decent 
switches? At least Snom could have put some remark then that you need 
a certain brand of switches.  If 3Com is not good enough for the 
phones I would have bought different phones.


Blaming the 3com switch is very likely to be the wrong root cause. 
High probability the 3com was not configured properly for the phone.


The 3C16479 is a non-configurable, non-managed 3Com workgroup gbit 
switch. It is directly connected to the asterisk server with one cable, 
the phones are connected to the other ports.  There is nothing to 
configure on the switch.


The switch is doing auto negotiation, whether you can see it or not. 
That's exactly why I'd never use an unmanaged switch for anything that 
is critical. Gig in this case has no value whatsoever.


Maybe I need to change my opinion, it's not only the firmware that 
sucks, if the ethernet chip on the phone is this oversensitive I guess 
the same would apply for the hardware.


Part of the problem with this half vs full duplex is there are no 
commonly implemented industry standards for negotiating a correct 
setting. Essentially, the switch port and the attached device auto 
negotiates at the same time, and one device sees what it thinks is 
half duplex when the other device is in the middle of its negotiation 
process. In most cases, statically defining one of the two is 
sufficient, but to be 100% accurate from a performance perspective, both 
should be statically defined.


Gig ports that truly operate at gig speeds is not an issue as there is 
no such thing as half duplex gig. But, if the attached devices only 
operate at 10/100 speeds, the switch still has to negotiate the half vs 
full duplex.


There is just no valid reason why the phone would need to lockup or 
reboot even if the network connection would be problematic, no matter 
what. That is just poor design, not a feature.


I'd agree with that 1000%. I stopped using snom products with the 200 
for that very reason (eg, lack of testing and quality control).



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Re: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-26 Thread Rich Adamson

Colin Anderson wrote:

More cowbell?


Shit, you owe me a new keyboard! Funniest thing I've *ever* read on the
list. 


I've experienced the auto-negotiate issue with Snom's before. I forgot to
mention that we make it part of our standard install to force 100baseT-full.
I've also noticed the Catalyst does the spanning-tree thing and waits up to
30 seconds before  enabling the port - this can cause problems with Snoms
because they boot before the Catalyst enables the port, causing registration
to fail. Then you warm-boot the Snom and everything's OK. 


The same spanning tree issue (not forwarding packets for 30 to 60 
seconds) is also a problem with most of the newer PC systems 
(particularly with MS O/S) as the system boots up quicker then when the 
switch is ready to forward traffic. An MS O/S system begins broadcasting 
for domain controllers (etc) before the switch is ready to forward 
traffic resulting in some very strange problems that most Sys Admins 
diagnose incorrectly.



One last interesting tidbit: We have a *lot* of Dell Dimensions with super
craptastic embedded Ethernet. They will auto negotiate with a Snom (plugged
into the PC port) to 100baseT full, but then you can't ping or TX past the
phone itself. Oddly enough, it gets an IP from our DHCP server OK. Forcing
the Dell to 100baseT full, half, or even 10 full works 100% of the time.
This never happens on any kind of decent Ethernet card like an 82557 chip or
3com. If we have an Optiplex, it *just works*


Right on! But, its not just the Dell products. There are a fair number 
of other products with the same issue, and a few drivers that have 
half/duplex backwards (set it to half and the interface operates in 
full, or, setting to either half or full fails but auto works in full 
duplex just fine).




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RE: [Asterisk-Users] Snom firmwares suck --additional datapoint to consider

2006-05-25 Thread Colin Anderson
We have a large install of 360's running rev 4.1 with zero problems. I did
another, smaller install couple weeks ago with 40 360's running rev 5.3. In
both cases, the install was identical, same Asterisk version, same dialplan,
everything the same except the differences were:

1. Different firmware rev
2. Different physical LAN

Guess what? On the smaller install, lockups and reboots. Emailing Snom, I
got this response: 

The mentioned behaviour occured under certain
network conditions and should have been fixed with V5.5 which is -though its
Beta state- the last verified stable and reliable version:
snom360: http://fox.snom.com/download/snom360-5.5b-beta-SIP-j.bin
I would not recommend to downgrade since you would be loosing some
functionality

Changing firmware revs did not help, so that left the LAN.

I looked long and hard at the LAN and it was basically narrowed down to the
switches. In this smaller install, several cheapo Dlink ($30) switches
de-aggregate a Cisco Catalyst switch. What I noticed was that any phone
plugged direcly into the Catalyst did *not* lock up or reboot. Any phone
plugged into the crap switches experienced the lockup. So now we are down to
the cheap switches themselves. We are nuking the Dlink switches and
replacing them with 3com workgroup switches, same as what we use in the
large install to good effect, and I fully expect the problem to dissapear. 

It's unfortunate that Snoms have a propensity to freak out in certain
environments but I don't think it would preclude me from using Snom in the
future. As long as one is aware of this issue, it should be easy enough to
work around.  
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-24 Thread Tommaso Calosi
I agree... Snom firmware are buggy. You can use any version, you'll 
always find a bug, expecially for 320's. I think instead of developing  
the XML minibrowser they should make the phones to work properly.

Dovid Bender wrote:
I was transporting it in my suitcase when I flew from NY to FL. When I 
got there the screen was dead. I contacted snom and they were real 
helpfull and resolving the issue.
 
Dovid


*/Alex Robar [EMAIL PROTECTED]/* wrote:

Interesting, I've never had a screen just die on me. Are you
saying that the screen just stops working?

As for firmware, I've always found that the best way to deal with
problematic firmware is to talk to the company about it.
Especially in a scenario like you're in, where everyone else seems
happy with the firmware. It's very likely that Snom may not be
aware of the problems you are experiencing. I can't say that I've
ever had a Snom reboot in the middle of a conversation. I don't
think my phones have ever just rebooted when I haven't asked them
to. I would certainly talk to Snom about this.

Alex

On 5/19/06, *Remco Barende* [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:

Most people seem quite positive about Snom phones, I cannot
share this
opinion.

The displays are dying quite often, and firmware is buggy. I
have tried
every firmware from 4.5 up to 5.x and 6.04 but keep having
problems with
phones locking up or rebooting during an ongoing conversation.

REALLY annoying for a phone that is advertised / targeted as a
business
class phone
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-- 
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[EMAIL PROTECTED] mailto:[EMAIL PROTECTED]
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-24 Thread asterisk

On Wed, 24 May 2006, Tommaso Calosi wrote:
I agree... Snom firmware are buggy. You can use any version, you'll always 
find a bug, expecially for 320's. I think instead of developing  the XML 
minibrowser they should make the phones to work properly.


I went around in circles with snom for a while, trying to get them to fix 
firmware bugs they introduced into new versions which broke 
autoprovisioning. Very frustrating experience compared to other vendors I 
have dealt with.


And I keep getting bugs brushed off even though others (on this list, 
even) have repro'd.


-Dan

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Re: [Asterisk-Users] Snom firmwares suck

2006-05-22 Thread Remco Barende

On Fri, 19 May 2006, Steve Davies wrote:


On 5/19/06, Remco Barende [EMAIL PROTECTED] wrote:

Most people seem quite positive about Snom phones, I cannot share this
opinion.

The displays are dying quite often, and firmware is buggy. I have tried
every firmware from 4.5 up to 5.x and 6.04 but keep having problems with
phones locking up or rebooting during an ongoing conversation.

REALLY annoying for a phone that is advertised / targeted as a business
class phone


Hmmm... A random statement out of the blue... I assume that you meant
to add Does any kind soul have a suggestion to help out? :-)

I find that the snom phones can be over-sensetive to network glitches,
which with the default configuration can cause a reboot (usually
caused by cheap switches). Try changing the reboot on ethernet unplug
setting to ignore.


Tried setting the phone to ignore, it didn't help. Still the phone 
reboots occasionally during a conversation.


But thanks for the suggestion!
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-22 Thread Steve Davies

On 5/22/06, Remco Barende [EMAIL PROTECTED] wrote:

On Fri, 19 May 2006, Steve Davies wrote:
 I find that the snom phones can be over-sensetive to network glitches,
 which with the default configuration can cause a reboot (usually
 caused by cheap switches). Try changing the reboot on ethernet unplug
 setting to ignore.

Tried setting the phone to ignore, it didn't help. Still the phone
reboots occasionally during a conversation.

But thanks for the suggestion!


Oh well.. Perhaps this is a genuinely faulty unit then?

Thanks for the datapoint.
Steve
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-22 Thread Dovid Bender
I was transporting it in my suitcase when I flew from NY to FL. When I got there the screen was dead. I contacted snom and they were real helpfull and resolving the issue.DovidAlex Robar [EMAIL PROTECTED] wrote:  Interesting, I've never had a screen just die on me. Are you saying that the screen just stops working?As for firmware, I've always found that the best way to deal with problematic firmware is to talk to the company about it. Especially in a scenario like you're in, where everyone else seems happy with the firmware. It's very likely that Snom may not be aware of the problems you are experiencing. I can't say that I've ever had a Snom reboot in the middle of a conversation. I don't think my phones have ever just rebooted when I haven't asked them to. I would certainly talk to Snom
 about this. Alex  On 5/19/06, Remco Barende [EMAIL PROTECTED] wrote:  Most people seem quite positive about Snom phones, I cannot share thisopinion.The displays are dying quite often, and firmware is buggy. I have triedevery firmware from 4.5 up to 5.x and 6.04 but keep having problems with phones locking up or rebooting during an ongoing conversation.REALLY annoying for a phone that is advertised / targeted as a businessclass phone___--Bandwidth and Colocation provided by Easynews.com --Asterisk-Users mailing listTo UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- Alex Robar[EMAIL PROTECTED] ___--Bandwidth and Colocation provided by Easynews.com --Asterisk-Users mailing listTo UNSUBSCRIBE or update options visit:http://lists.digium.com/mailman/listinfo/asterisk-users
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[Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Remco Barende
Most people seem quite positive about Snom phones, I cannot share this 
opinion.


The displays are dying quite often, and firmware is buggy. I have tried 
every firmware from 4.5 up to 5.x and 6.04 but keep having problems with 
phones locking up or rebooting during an ongoing conversation.


REALLY annoying for a phone that is advertised / targeted as a business 
class phone

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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Alex Robar
Interesting, I've never had a screen just die on me. Are you saying that the screen just stops working?As for firmware, I've always found that the best way to deal with problematic firmware is to talk to the company about it. Especially in a scenario like you're in, where everyone else seems happy with the firmware. It's very likely that Snom may not be aware of the problems you are experiencing. I can't say that I've ever had a Snom reboot in the middle of a conversation. I don't think my phones have ever just rebooted when I haven't asked them to. I would certainly talk to Snom about this.
AlexOn 5/19/06, Remco Barende [EMAIL PROTECTED] wrote:
Most people seem quite positive about Snom phones, I cannot share thisopinion.The displays are dying quite often, and firmware is buggy. I have triedevery firmware from 4.5 up to 5.x and 6.04 but keep having problems with
phones locking up or rebooting during an ongoing conversation.REALLY annoying for a phone that is advertised / targeted as a businessclass phone___--Bandwidth and Colocation provided by 
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-- Alex Robar[EMAIL PROTECTED]
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Steve Davies

On 5/19/06, Remco Barende [EMAIL PROTECTED] wrote:

Most people seem quite positive about Snom phones, I cannot share this
opinion.

The displays are dying quite often, and firmware is buggy. I have tried
every firmware from 4.5 up to 5.x and 6.04 but keep having problems with
phones locking up or rebooting during an ongoing conversation.

REALLY annoying for a phone that is advertised / targeted as a business
class phone


Hmmm... A random statement out of the blue... I assume that you meant
to add Does any kind soul have a suggestion to help out? :-)

I find that the snom phones can be over-sensetive to network glitches,
which with the default configuration can cause a reboot (usually
caused by cheap switches). Try changing the reboot on ethernet unplug
setting to ignore.

It helps here.
Steve
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Dr. Michael J. Chudobiak

Remco Barende wrote:
Most people seem quite positive about Snom phones, I cannot share this 
opinion.


The displays are dying quite often, and firmware is buggy. I have tried 
every firmware from 4.5 up to 5.x and 6.04 but keep having problems with 
phones locking up or rebooting during an ongoing conversation.


REALLY annoying for a phone that is advertised / targeted as a business 
class phone


Remco,

I have a dozen Snom 360s. One had a defective LCD that would become 
garbled after time. Snom support quickly confirmed that this was a known 
issue, and my vendor (voipsupply) quickly sent a replacement.


I've never seen any lockups or reboots. I reboot the phones each night 
at midnight, just to be safe - try doing that to see if it reduces 
problems. I've posted a sample perl cron script at 
http://www.voip-info.org/wiki/view/Asterisk+phone+snom to show how.


I use shielded ethernet cables (STP) everywhere too. Try that - good 
grounding may be beneficial. It can't hurt, anyway.


Snom support is pretty responsive. Try emailing [EMAIL PROTECTED]; they 
have fixed some issues for me (for example, the clock was showing the 
wrong time due to daylight savings time problems).


Try using a Grandstream GXP-2000 phone, and you'll see why people like 
the Snoms :-)


Hope this helps - let us know if anything makes a difference!


- Mike
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Remco Barende



The displays are dying quite often, and firmware is buggy. I have tried
every firmware from 4.5 up to 5.x and 6.04 but keep having problems with
phones locking up or rebooting during an ongoing conversation.


Yes, as someone asked earlier on the list the displays do die at some 
random moment without any apparent reason



REALLY annoying for a phone that is advertised / targeted as a business
class phone


Hmmm... A random statement out of the blue... I assume that you meant
to add Does any kind soul have a suggestion to help out? :-)


Heh :)   It is pure frustration



I find that the snom phones can be over-sensetive to network glitches,
which with the default configuration can cause a reboot (usually
caused by cheap switches). Try changing the reboot on ethernet unplug
setting to ignore.


Good idea, I will change the settings to ignore.  The switches are 3Com 
gbit switches. Not sure if that would qualify as cheap :)


I have about 40 Snom 360's and I experienced this problem on my phone at 
home and some at the office using different firmware versions.


Thanks!
Remco

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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Dave Cotton
On Fri, 2006-05-19 at 14:19 +0100, Steve Davies wrote:
 On 5/19/06, Remco Barende [EMAIL PROTECTED] wrote:
  Most people seem quite positive about Snom phones, I cannot share this
  opinion.
 
  The displays are dying quite often, and firmware is buggy. I have tried
  every firmware from 4.5 up to 5.x and 6.04 but keep having problems with
  phones locking up or rebooting during an ongoing conversation.
 
  REALLY annoying for a phone that is advertised / targeted as a business
  class phone
 
 Hmmm... A random statement out of the blue... I assume that you meant
 to add Does any kind soul have a suggestion to help out? :-)
 

Old English saying A bad workman always blames his tools

Only problems I've had with Snoms have been Id10t user problems.


-- 
Dave Cotton [EMAIL PROTECTED]

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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Steve Davies

On 5/19/06, Remco Barende [EMAIL PROTECTED] wrote:

 I find that the snom phones can be over-sensetive to network glitches,
 which with the default configuration can cause a reboot (usually
 caused by cheap switches). Try changing the reboot on ethernet unplug
 setting to ignore.

Good idea, I will change the settings to ignore.  The switches are 3Com
gbit switches. Not sure if that would qualify as cheap :)

I have about 40 Snom 360's and I experienced this problem on my phone at
home and some at the office using different firmware versions.


I would be interested to know whether this works for you, just as an
extra datapoint.

Regards,
Steve
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Dr. Michael J. Chudobiak

Old English saying A bad workman always blames his tools


I don't think that's fair... these are very complicated phones, made in 
China for very low prices. Problems do occur with them.


Some Snom LCDs do have problems.

There are firmware glitches, though I've only run into minor ones.

Overall though, they are very good phones.


- Mike
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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread Dave Cotton
On Fri, 2006-05-19 at 10:21 -0400, Dr. Michael J. Chudobiak wrote:
  Old English saying A bad workman always blames his tools
 
 I don't think that's fair... these are very complicated phones, made in 
 China for very low prices. Problems do occur with them.
 
 Some Snom LCDs do have problems.
 
 There are firmware glitches, though I've only run into minor ones.
 
 Overall though, they are very good phones.

And that is the whole point of the saying.

I object to the type of posting that says XYZ sucks it is the language
and attitude of children. As Steve Davies said I assume that you meant
to add Does any kind soul have a suggestion to help out? :-)

-- 
Dave Cotton [EMAIL PROTECTED]

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RE: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread The VoIP Connection
I can confirm that the issue with the display is usually a hardware problem,
not firmware.  If the phone has this issue, it may be related to the other
issues (locking up, etc.).  I suggest you return the phones that have this
problem for warrantee exchange.

As far as the firmware goes, the production versions generally have a few
minor issues but are pretty sound overall (relative to other vendors). -Mike

Michael Crown
Managing Partner
www.thevoipconnection.com
321.989.6728 ext. 611
sip:[EMAIL PROTECTED]

 -Original Message-
 From: Dr. Michael J. Chudobiak [mailto:[EMAIL PROTECTED] 
 Sent: Friday, May 19, 2006 9:21 AM
 To: Asterisk Users Mailing List - Non-Commercial Discussion
 Cc: [EMAIL PROTECTED]
 Subject: Re: [Asterisk-Users] Snom firmwares suck
 
 Remco Barende wrote:
  Most people seem quite positive about Snom phones, I cannot 
 share this 
  opinion.
  
  The displays are dying quite often, and firmware is buggy. I have 
  tried every firmware from 4.5 up to 5.x and 6.04 but keep having 
  problems with phones locking up or rebooting during an 
 ongoing conversation.
  
  REALLY annoying for a phone that is advertised / targeted as a 
  business class phone
 
 Remco,
 
 I have a dozen Snom 360s. One had a defective LCD that would 
 become garbled after time. Snom support quickly confirmed 
 that this was a known issue, and my vendor (voipsupply) 
 quickly sent a replacement.
 
 I've never seen any lockups or reboots. I reboot the phones 
 each night at midnight, just to be safe - try doing that to 
 see if it reduces problems. I've posted a sample perl cron 
 script at 
 http://www.voip-info.org/wiki/view/Asterisk+phone+snom to show how.
 
 I use shielded ethernet cables (STP) everywhere too. Try 
 that - good grounding may be beneficial. It can't hurt, anyway.
 
 Snom support is pretty responsive. Try emailing 
 [EMAIL PROTECTED]; they have fixed some issues for me (for 
 example, the clock was showing the wrong time due to daylight 
 savings time problems).
 
 Try using a Grandstream GXP-2000 phone, and you'll see why 
 people like the Snoms :-)
 
 Hope this helps - let us know if anything makes a difference!
 
 
 - Mike
 
 

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Re: [Asterisk-Users] Snom firmwares suck

2006-05-19 Thread RandyW




I'm gonna jump in here and join Dave here.

It simply is of no value to just SPAM your opinion around without
either providing real facts or asking for assistance. We are here to
ask for or give out help. This just isn't productive.

Now, if you want a detailed, painfully so, explanation why Sun's DLT
8000 tape drives are "underperformers" (notice I didn't "vomitous
garbage") I would be happy to help you out. Off-line of course... 

grin

RandyW

Dave Cotton wrote:

  On Fri, 2006-05-19 at 10:21 -0400, Dr. Michael J. Chudobiak wrote:
  
  

  Old English saying "A bad workman always blames his tools"
  

I don't think that's fair... these are very complicated phones, made in 
China for very low prices. Problems do occur with them.

Some Snom LCDs do have problems.

There are firmware glitches, though I've only run into minor ones.

Overall though, they are very good phones.

  
  
And that is the whole point of the saying.

I object to the type of posting that says "XYZ sucks" it is the language
and attitude of children. As Steve Davies said "I assume that you meant
to add "Does any kind soul have a suggestion to help out?" :-)"

  



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