Re: [Asterisk-Users] A rather big setup.

2005-12-16 Thread Mike Fedyk

Tom Rymes wrote:

Also, if these tenants are not related, then why not run more than  
one Asterisk server and avoid interconnecting them? Sure, you'll have  
multiple systems to maintain, but they will be smaller, less complex  
systems. Also, since each company is unrelated, there is little  
benefit to having them all on the same server (no need to dial  
between offices, etc)


I agree.  You have an exact multi-tenant setup.

I would take each of the E1 connections and plug them into a server, one 
for each floor.  If one of the servers runs out of connectins on its E1, 
then it can use the outbound lines from an * for another floor.  You do 
not want the entire building to have an outage.


You happen to have 8 E1 and 8 floors, right?  If not, then you can have 
any floors that don't have a direct E1 connection dial out through the * 
servers that do have an E1.


Also, *do not* run fax over SIP if at all possible.  You will need 
channel banks to handle the faxes.  Setup a hylafax server so each 
tenant can receive faxes over email, and send them from their computers, 
or just strike up a deal with efax for the building.


Mike
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RE: [Asterisk-Users] A rather big setup.

2005-11-28 Thread Roger Workman
Vedran,

Email me off topic and I can provide you some case studies of different 
providers for your review.

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> -Original Message-
> From: [EMAIL PROTECTED] [mailto:asterisk-users-
> [EMAIL PROTECTED] On Behalf Of Jan Saell
> Sent: Monday, November 28, 2005 12:55 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: RE: [Asterisk-Users] A rather big setup.
>
> if this is a brand new thing you can force the phones on people and then
> you can to provisioning remotly of for instance Grandstream so they can
> change the config themself. By forcing a common set of codex you can avoid
> cpu overhead of translation so you only have to think of teh datashuffle.
>
> Bu doing god work at the dialpla you make shure that all the calls thats
> internal never hit the main pbx'es in the celler and oly use them for
> outgoing!
>
> Best regards
> jan
>
> --On Monday, November 28, 2005 04:22:09 AM 퍝 Vedran Dakic
> <[EMAIL PROTECTED]> wrote:
>
> >
> > Hello,
> >
> > Those people currently aren't using any kind of phones, but the
> investment
> > company that has this building "in the works" wants to deliver
> everything
> > for them so they just have to - move in and do business.
> >
> > What worries me is the fact that when you have 100-200 offices - they're
> > used to having 2-3 lines only for them - one for fax, two for voice,
> etc.
> > So, in a way, having in mind around 200-300 outbound calls at peak time
> is
> > pretty much "normal". Also, when you think of the number of phones - it
> > would only be normal to assume for people to have up to 1000 internal
> > phone conversations peak (the less transcoding - the better, of course).
> >
> > I have a freedom of making whatever I want, so I can have a separate LAN
> > for VoIP purposes only - a bunch of dedicated patch panels, VLANs on
> Cisco
> > switches, or whatever. I'm just considering this setup way before it has
> > to go online because of the price of traditional PBX for this kind of
> > setup which can only make you hurl. And you know how much potential
> > upgrades cost for a setup like this - a traditional PBX can be a
> > nightmare :(
> >
> > Cheers,
> > Vedran.
> >
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Hans
> > Witvliet Sent: Monday, November 28, 2005 12:08 AM
> > To: asterisk-users@lists.digium.com
> > Subject: RE: [Asterisk-Users] A rather big setup.
> >
> > I think there is more to consider.
> > One or two fat machines in the basement forr connecting to the PSTN is
> > very fine.
> > But are all the people allready using voip handsets, or old fashioned
> > analoge handsets? If so, you need quite a large number of channelbanks.
> > You speak of 300/1500 concurrent phone calls? If so how many handsets
> > are you considering?
> > Is the lan capable of handling this load?
> > Is the lan 100% dedicated for voip, or are there a bunch of
> > servers/workstations also using this lan?
> >
> > Interesting project
> >
> > Hans
> >
> >
> > ___
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> >http://lists.digium.com/mailman/listinfo/asterisk-users
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>
>
> --
> +--
> ! Irial / YASK AB
> ! Att: Jan Saell
> ! Box 59, S-692 21 KUMLA, SWEDEN
> ! Tel: 019-58 25 15 Int 19 58 25 15 Fax 19 58 38 05
> ! E-mail: [EMAIL PROTECTED]
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Re: [Asterisk-Users] A rather big setup.

2005-11-28 Thread Simone Cittadini

Vedran Dakic ha scritto:

 

 

How does Asterisk handle this kind of setup with one-two/cluster 
central server(s) and a bunch of other servers


connected with IAX(2)? If you have local calls, do they go directly 
from phone to phone, do they go from phone to


per-floor-Asterisk server, or they have to be interconnected via the 
main Asterisk server(s)/cluster?


With SIP the default is to directly connect the phones once the call is 
setup (I think also in IAX), investigate canreinvite / nat.


Of course you can't do call detail record for calls which aren't forced 
to pass from the server, see if it's a problem ...



As for maintenance we have a dozen of pcs with asterisk installed, each 
of them is server for 8/10 sip phones and client to a central asterisk 
server which then connects to E1. Asterisk pcs are scattered around, 
they pass trough at least one natted network, usually two. Never a problem.


Connecting all the SIP phones to SER  load balancing to more than one 
asterisk server will make you learn a lot about sip internals, proxy, 
domains, authentication and other interesting stuff, but if you need to 
have a working sistems and can start from zero go iax and spare yourself 
a lot of frustration.


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RE: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Jan Saell
if this is a brand new thing you can force the phones on people and then 
you can to provisioning remotly of for instance Grandstream so they can 
change the config themself. By forcing a common set of codex you can avoid 
cpu overhead of translation so you only have to think of teh datashuffle.


Bu doing god work at the dialpla you make shure that all the calls thats 
internal never hit the main pbx'es in the celler and oly use them for 
outgoing!


Best regards
jan

--On Monday, November 28, 2005 04:22:09 AM +0100 Vedran Dakic 
<[EMAIL PROTECTED]> wrote:




Hello,

Those people currently aren't using any kind of phones, but the investment
company that has this building "in the works" wants to deliver everything
for them so they just have to - move in and do business.

What worries me is the fact that when you have 100-200 offices - they're
used to having 2-3 lines only for them - one for fax, two for voice, etc.
So, in a way, having in mind around 200-300 outbound calls at peak time is
pretty much "normal". Also, when you think of the number of phones - it
would only be normal to assume for people to have up to 1000 internal
phone conversations peak (the less transcoding - the better, of course).

I have a freedom of making whatever I want, so I can have a separate LAN
for VoIP purposes only - a bunch of dedicated patch panels, VLANs on Cisco
switches, or whatever. I'm just considering this setup way before it has
to go online because of the price of traditional PBX for this kind of
setup which can only make you hurl. And you know how much potential
upgrades cost for a setup like this - a traditional PBX can be a
nightmare :(

Cheers,
Vedran.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Hans
Witvliet Sent: Monday, November 28, 2005 12:08 AM
To: asterisk-users@lists.digium.com
Subject: RE: [Asterisk-Users] A rather big setup.

I think there is more to consider.
One or two fat machines in the basement forr connecting to the PSTN is
very fine.
But are all the people allready using voip handsets, or old fashioned
analoge handsets? If so, you need quite a large number of channelbanks.
You speak of 300/1500 concurrent phone calls? If so how many handsets
are you considering?
Is the lan capable of handling this load?
Is the lan 100% dedicated for voip, or are there a bunch of
servers/workstations also using this lan?

Interesting project

Hans


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--
+---
! Irial / YASK AB
! Att: Jan Saell
! Box 59, S-692 21 KUMLA, SWEDEN
! Tel: 019-58 25 15 Int +46-19 58 25 15 Fax +46-19 58 38 05
! E-mail: [EMAIL PROTECTED]
! PGP Fingerprint: E957 23C8 9F51 0958 B9AD  7F18 404A 5DA1 F944 A08B


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Re: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Tom Rymes

On Nov 27, 2005, at 10:22 PM, Vedran Dakic wrote:

What worries me is the fact that when you have 100-200 offices -  
they're
used to having 2-3 lines only for them - one for fax, two for  
voice, etc.
So, in a way, having in mind around 200-300 outbound calls at peak  
time is
pretty much "normal". Also, when you think of the number of phones  
- it
would only be normal to assume for people to have up to 1000  
internal phone

conversations peak (the less transcoding - the better, of course).


If you're providing them with analog lines that they would plug  
faxes, phones, etc into, you should use T1/E1 cards and Analog  
Channel banks. This choice, of course, affects:


I have a freedom of making whatever I want, so I can have a  
separate LAN for

VoIP purposes only - a bunch of dedicated patch panels, VLANs on Cisco
switches, or whatever. I'm just considering this setup way before  
it has to
go online because of the price of traditional PBX for this kind of  
setup
which can only make you hurl. And you know how much potential  
upgrades cost

for a setup like this - a traditional PBX can be a nightmare :(


If you are using analog channel banks instead of ATAs or SIP  
hardphones, then VLANS, etc are not necessary. Of course, you will  
then need wiring for however many lines into each office, but then  
again, that most likely already exists. (thus saving on investment...)


Also, if these tenants are not related, then why not run more than  
one Asterisk server and avoid interconnecting them? Sure, you'll have  
multiple systems to maintain, but they will be smaller, less complex  
systems. Also, since each company is unrelated, there is little  
benefit to having them all on the same server (no need to dial  
between offices, etc)


Tom


Tom Rymes
Cascade Link Systems
www.cascadelinksystems.com
(603) 375-1414

"Intelligent technology solutions for small businesses."


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RE: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Vedran Dakic








 

I'm very aware of the maintenance issue,
but it would also give me a great deal of freedom for some various other

things as well. This of course depends on
the Asterisk architecture, which I'm not completely aware of - in detail

anyway.

 

How does Asterisk handle this kind of
setup with one-two/cluster central server(s) and a bunch of other servers

connected with IAX(2)? If you have local
calls, do they go directly from phone to phone, do they go from phone to

per-floor-Asterisk server, or they have to
be interconnected via the main Asterisk server(s)/cluster? I mean, there's

little point of doing this kind of setup
with dedicated Asterisk servers on each floor if you don't get your central

server/cluster free of some work - at
least of internal calls. Also, it kills scalability, which is always an
"issue".

 

Anyone?

 

Cheers,

Vedran.









From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Script Head
Sent: Sunday, November 27, 2005
11:13 PM
To: Asterisk Users Mailing List -
Non-Commercial Discussion
Subject: Re: [Asterisk-Users] A
rather big setup.



 



Spreading * servers across multiple floors sounds like a bad idea since
it'd increase maintenance time. With your projected

call volume there's no way you can reliably run g729 or any other CPU
hog of a codec on a single box. For this kind of a

setup you'd need 2-3 boxes and a SER/heartbeat box to handle
registration and call distribution. I would also isolate CDR

recording to a separate box running a database like Postgres (IMHO
better choice due to WAL) or MySQL.

ScriptHead





 






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RE: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Vedran Dakic

Hello,

Those people currently aren't using any kind of phones, but the investment
company that has this building "in the works" wants to deliver everything
for them so they just have to - move in and do business. 

What worries me is the fact that when you have 100-200 offices - they're
used to having 2-3 lines only for them - one for fax, two for voice, etc.
So, in a way, having in mind around 200-300 outbound calls at peak time is
pretty much "normal". Also, when you think of the number of phones - it
would only be normal to assume for people to have up to 1000 internal phone
conversations peak (the less transcoding - the better, of course).

I have a freedom of making whatever I want, so I can have a separate LAN for
VoIP purposes only - a bunch of dedicated patch panels, VLANs on Cisco
switches, or whatever. I'm just considering this setup way before it has to
go online because of the price of traditional PBX for this kind of setup
which can only make you hurl. And you know how much potential upgrades cost
for a setup like this - a traditional PBX can be a nightmare :(

Cheers,
Vedran.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Hans Witvliet
Sent: Monday, November 28, 2005 12:08 AM
To: asterisk-users@lists.digium.com
Subject: RE: [Asterisk-Users] A rather big setup.

I think there is more to consider.
One or two fat machines in the basement forr connecting to the PSTN is
very fine.
But are all the people allready using voip handsets, or old fashioned
analoge handsets? If so, you need quite a large number of channelbanks.
You speak of 300/1500 concurrent phone calls? If so how many handsets
are you considering?
Is the lan capable of handling this load?
Is the lan 100% dedicated for voip, or are there a bunch of
servers/workstations also using this lan?

Interesting project

Hans


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RE: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Hans Witvliet
On Sun, 2005-11-27 at 12:02 +0100, Vedran Dakic wrote:
> Hmm, maybe I'm missing something here. So, just to be sure...
> 
> I was thinking about having a separate Asterisk server/cluster in the -1
> floor server room where all of the telco/other wires come in (with that 240
> lines via 8 E1 wires), and one asterisk server per floor connected to
> Asterisk server/cluster in the basement. I don't understand what did you
> mean by this "30 lines from each floor" :) Confused a bit here Couldn't
> I have these per-floor Asterisk servers connected directly via Ethernet/IAX
> to the -1 floor server room, and have those servers/cluster/whatever manage
> the calls? I wasn't thinking about installing one asterisk server per floor
> with E1 card inside. I was thinking about connecting all of those servers to
> the central server with all of the E1 lines inside. Isn't that possible?
> 
> Cheers,
> Vedran.
> 
I think there is more to consider.
One or two fat machines in the basement forr connecting to the PSTN is
very fine.
But are all the people allready using voip handsets, or old fashioned
analoge handsets? If so, you need quite a large number of channelbanks.
You speak of 300/1500 concurrent phone calls? If so how many handsets
are you considering?
Is the lan capable of handling this load?
Is the lan 100% dedicated for voip, or are there a bunch of
servers/workstations also using this lan?

Interesting project

Hans
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Re: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Script Head
Spreading * servers across multiple floors sounds like a bad idea since
it'd increase maintenance time. With your projected call volume there's
no way you can reliably run g729 or any other CPU hog of a codec on a
single box. For this kind of a setup you'd need 2-3 boxes and a
SER/heartbeat box to handle registration and call distribution. I would
also isolate CDR recording to a separate box running a database like
Postgres (IMHO better choice due to WAL) or MySQL.

ScriptHead
On 11/27/05, Simone Cittadini <[EMAIL PROTECTED]> wrote:
Vedran Dakic ha scritto:>>I can only guess that I should have the ability to deliver a solution that>can do some 100/500 simultaneously. The only question is how powerful should>be a machine (or machines) that could do around 100/500 simultaneously. And,
>just for the sake of knowing, what should the setup be alike if it was>240/1000 simultaneously?>>>My suggestion is to buy the E1 cards first of all and put them in a testserver, equipped with asterisk and all the relevant
agi / db connections / moh etc..Then loop the card with a crossover cable and run some test script togenerate the  medium and upper bound call flows.That should give you an idea of your cpu/ram requirements.
>>In the second case there's no need for a cluster, a good server will do,>>(obviously a second server for backup is a good idea ). I'm assuming you>>can use a/ulaw to transmit the data, if bandwidth is a problem and you
>>must compress cpu usage becomes a boottleneck to keep in mind.>>A/ulaw? I saw some reports that G.729 uses very little bandwidth and has>a quality part granted (audio quality). It's not a question of hardware
>and/or CPU power, I have two dual Opteron configurations and could install>some more, it's just the question of that setup running with quality audio>and no unwanted events.>>G729 has a very good quality -considered the bandwidth used-, but if
your customers are used to conventional telephony they will no doubtnotice the difference, so go with G711 (probably alaw, since you use E1I suppose you are in europe)Anyway if bandwidth is a problem consider ilbc / speex which are free
and have good audio qualities also.Lastly a lot of the quality comes from a well configured phone, tweakwith volumes and timeouts.>I presume that I should have all of the phones using the same codec (so,
>no transcoding), and preferrably the same VoIP protocol. I have a choice>there so everything's possible. Let's say - IP10s has H.323, SIP and MGCP>firmwares, although I'd like to leave H.323 out of the story.
>>>Yes, leaving H323 out of the story is a good way to start the project :)___--Bandwidth and Colocation provided by 
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Re: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Simone Cittadini

Vedran Dakic ha scritto:



I can only guess that I should have the ability to deliver a solution that
can do some 100/500 simultaneously. The only question is how powerful should
be a machine (or machines) that could do around 100/500 simultaneously. And,
just for the sake of knowing, what should the setup be alike if it was
240/1000 simultaneously?

 

My suggestion is to buy the E1 cards first of all and put them in a test 
server, equipped with asterisk and all the relevant

agi / db connections / moh etc..
Then loop the card with a crossover cable and run some test script to 
generate the  medium and upper bound call flows.

That should give you an idea of your cpu/ram requirements.

In the second case there's no need for a cluster, a good server will do, 
(obviously a second server for backup is a good idea ). I'm assuming you

can use a/ulaw to transmit the data, if bandwidth is a problem and you
must compress cpu usage becomes a boottleneck to keep in mind.
   



A/ulaw? I saw some reports that G.729 uses very little bandwidth and has
a quality part granted (audio quality). It's not a question of hardware
and/or CPU power, I have two dual Opteron configurations and could install
some more, it's just the question of that setup running with quality audio
and no unwanted events.
 

G729 has a very good quality -considered the bandwidth used-, but if 
your customers are used to conventional telephony they will no doubt 
notice the difference, so go with G711 (probably alaw, since you use E1 
I suppose you are in europe)
Anyway if bandwidth is a problem consider ilbc / speex which are free 
and have good audio qualities also.
Lastly a lot of the quality comes from a well configured phone, tweak 
with volumes and timeouts.



I presume that I should have all of the phones using the same codec (so,
no transcoding), and preferrably the same VoIP protocol. I have a choice
there so everything's possible. Let's say - IP10s has H.323, SIP and MGCP
firmwares, although I'd like to leave H.323 out of the story.

 


Yes, leaving H323 out of the story is a good way to start the project :)

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RE: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Jan Saell

Well you are exactly right!

You can have one box per floor. But you said that they where going to 
connect to the main astrisk with a E1 and then i guessed that you where 
tinking of using a E1 car in the box to the main one and not ethernet. 
Thats why i said what i did.


So yes - connect them with Ethernet/IAX and is should work fine!

Best regards
jan

--On Sunday, November 27, 2005 12:02:53 PM +0100 Vedran Dakic 
<[EMAIL PROTECTED]> wrote:



Hmm, maybe I'm missing something here. So, just to be sure...

I was thinking about having a separate Asterisk server/cluster in the -1
floor server room where all of the telco/other wires come in (with that
240 lines via 8 E1 wires), and one asterisk server per floor connected to
Asterisk server/cluster in the basement. I don't understand what did you
mean by this "30 lines from each floor" :) Confused a bit here
Couldn't I have these per-floor Asterisk servers connected directly via
Ethernet/IAX to the -1 floor server room, and have those
servers/cluster/whatever manage the calls? I wasn't thinking about
installing one asterisk server per floor with E1 card inside. I was
thinking about connecting all of those servers to the central server with
all of the E1 lines inside. Isn't that possible?

Cheers,
Vedran.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jan Saell
Sent: Sunday, November 27, 2005 10:52 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [Asterisk-Users] A rather big setup.

Remember that the E1 only gives you a 30 lines from each floor then!

If you use a dedicated 100mbs ethernet and uses IAX trunks you can have
much more lines from each floor.
Sphinx
Just my 5 cents.

Best regards


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! Att: Jan Saell
! Box 59, S-692 21 KUMLA, SWEDEN
! Tel: 019-58 25 15 Int +46-19 58 25 15 Fax +46-19 58 38 05
! E-mail: [EMAIL PROTECTED]
! PGP Fingerprint: E957 23C8 9F51 0958 B9AD  7F18 404A 5DA1 F944 A08B


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RE: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Vedran Dakic
Hmm, maybe I'm missing something here. So, just to be sure...

I was thinking about having a separate Asterisk server/cluster in the -1
floor server room where all of the telco/other wires come in (with that 240
lines via 8 E1 wires), and one asterisk server per floor connected to
Asterisk server/cluster in the basement. I don't understand what did you
mean by this "30 lines from each floor" :) Confused a bit here Couldn't
I have these per-floor Asterisk servers connected directly via Ethernet/IAX
to the -1 floor server room, and have those servers/cluster/whatever manage
the calls? I wasn't thinking about installing one asterisk server per floor
with E1 card inside. I was thinking about connecting all of those servers to
the central server with all of the E1 lines inside. Isn't that possible?

Cheers,
Vedran.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jan Saell
Sent: Sunday, November 27, 2005 10:52 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [Asterisk-Users] A rather big setup.

Remember that the E1 only gives you a 30 lines from each floor then!

If you use a dedicated 100mbs ethernet and uses IAX trunks you can have 
much more lines from each floor.

Just my 5 cents.

Best regards


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RE: [Asterisk-Users] A rather big setup.

2005-11-27 Thread Jan Saell

Remember that the E1 only gives you a 30 lines from each floor then!

If you use a dedicated 100mbs ethernet and uses IAX trunks you can have 
much more lines from each floor.


Just my 5 cents.

Best regards

--On Saturday, November 26, 2005 12:35:16 PM +0100 Vedran Dakic 
<[EMAIL PROTECTED]> wrote:



You mean 240 / 1000 simultaneous calls or 240 outside lines and 1000
internal phones ?


I can only guess that I should have the ability to deliver a solution that
can do some 100/500 simultaneously. The only question is how powerful
should be a machine (or machines) that could do around 100/500
simultaneously. And, just for the sake of knowing, what should the setup
be alike if it was 240/1000 simultaneously?


In the second case there's no need for a cluster, a good server will do,
(obviously a second server for backup is a good idea ). I'm assuming you
can use a/ulaw to transmit the data, if bandwidth is a problem and you
must compress cpu usage becomes a boottleneck to keep in mind.


A/ulaw? I saw some reports that G.729 uses very little bandwidth and has
a quality part granted (audio quality). It's not a question of hardware
and/or CPU power, I have two dual Opteron configurations and could install
some more, it's just the question of that setup running with quality audio
and no unwanted events.

I presume that I should have all of the phones using the same codec (so,
no transcoding), and preferrably the same VoIP protocol. I have a choice
there so everything's possible. Let's say - IP10s has H.323, SIP and MGCP
firmwares, although I'd like to leave H.323 out of the story.


I'm having ~80 concurrent calls from iax/sip to pri  in alaw  from an
userbase of ~150 clients and the cpu is around 6% on a dual 2.8 Ghz.
1000 phones are a lot, and sip sometimes is an hassle (mostly nat), I
don't know your network topology, but maybe you can consider to connect
every group of phones to an asterisk pc and the pcs to the server via
iax, which uses a little less bandwidth and most of all works "out of
the box". A pentium 400 can handle ~8 calls with ilbc, so every modern
pc will do.


Maybe I have a better idea, now that I come to think of it. Maybe I should
install one Asterisk server per floor (8-9 floors) and use IAX to connect
to the central server with E1 connections. Does that sound reasonable?


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+---
! Irial / YASK AB
! Att: Jan Saell
! Box 59, S-692 21 KUMLA, SWEDEN
! Tel: 019-58 25 15 Int +46-19 58 25 15 Fax +46-19 58 38 05
! E-mail: [EMAIL PROTECTED]
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RE: [Asterisk-Users] A rather big setup.

2005-11-26 Thread Vedran Dakic
> You mean 240 / 1000 simultaneous calls or 240 outside lines and 1000 
> internal phones ?

I can only guess that I should have the ability to deliver a solution that
can do some 100/500 simultaneously. The only question is how powerful should
be a machine (or machines) that could do around 100/500 simultaneously. And,
just for the sake of knowing, what should the setup be alike if it was
240/1000 simultaneously?

> In the second case there's no need for a cluster, a good server will do, 
> (obviously a second server for backup is a good idea ). I'm assuming you
> can use a/ulaw to transmit the data, if bandwidth is a problem and you
> must compress cpu usage becomes a boottleneck to keep in mind.

A/ulaw? I saw some reports that G.729 uses very little bandwidth and has
a quality part granted (audio quality). It's not a question of hardware
and/or CPU power, I have two dual Opteron configurations and could install
some more, it's just the question of that setup running with quality audio
and no unwanted events.

I presume that I should have all of the phones using the same codec (so,
no transcoding), and preferrably the same VoIP protocol. I have a choice
there so everything's possible. Let's say - IP10s has H.323, SIP and MGCP
firmwares, although I'd like to leave H.323 out of the story.

> I'm having ~80 concurrent calls from iax/sip to pri  in alaw  from an 
> userbase of ~150 clients and the cpu is around 6% on a dual 2.8 Ghz.
> 1000 phones are a lot, and sip sometimes is an hassle (mostly nat), I 
> don't know your network topology, but maybe you can consider to connect 
> every group of phones to an asterisk pc and the pcs to the server via 
> iax, which uses a little less bandwidth and most of all works "out of 
> the box". A pentium 400 can handle ~8 calls with ilbc, so every modern 
> pc will do.

Maybe I have a better idea, now that I come to think of it. Maybe I should
install one Asterisk server per floor (8-9 floors) and use IAX to connect
to the central server with E1 connections. Does that sound reasonable?


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Re: [Asterisk-Users] A rather big setup.

2005-11-26 Thread Simone Cittadini

Vedran Dakic ha scritto:

I have been asked by the customer to deilver a big PBX-system based on 
Asterisk. The requirements are approximately:


- up to 240 lines for making outside calls from the building
- up to 1000 internal phone conversations (within the building)
- scalable up to 300/1500 calls

You mean 240 / 1000 simultaneous calls or 240 outside lines and 1000 
internal phones ?
In the second case there's no need for a cluster, a good server will do, 
( obviously a second server for backup is a good idea )
I'm assuming you can use a/ulaw to transmit the data, if bandwidth is a 
problem and you must compress cpu usage becomes a boottleneck to keep in 
mind.
I'm having ~80 concurrent calls from iax/sip to pri  in alaw  from an 
userbase of ~150 clients and the cpu is around 6% on a dual 2.8 Ghz.
1000 phones are a lot, and sip sometimes is an hassle (mostly nat), I 
don't know your network topology, but maybe you can consider to connect 
every group of phones to an asterisk pc and the pcs to the server via 
iax, which uses a little less bandwidth and most of all works "out of 
the box". A pentium 400 can handle ~8 calls with ilbc, so every modern 
pc will do.

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[Asterisk-Users] A rather big setup.

2005-11-26 Thread Vedran Dakic








I have been asked by the customer to
deilver a big PBX-system based on Asterisk. The requirements are approximately:


- up to 240 lines for making outside calls from the
building 
- up to 1000 internal phone conversations (within the
building) 
- scalable up to 300/1500 calls 

Does anyone have any ideas about a setup like this? How
much servers should I use, should I use clustering, what E1 cards,

how many, etc? Any help would be
mostly appericiated.






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