Re: [asterisk-users] OSLEC and zaptel-1.4.5.1

[Brandon Black]

On 10/24/07, Alan Lord [EMAIL PROTECTED] wrote:
 And anyone who has echo problems with x100p or other analogue cards
 should really give this a try. Most of the experiences I have read about
 have been very positive. Mine also :-)


Any in case anyone's wondering if it's too CPU intensive for little
embedded Asterisk devices, here's the speedtest results on a Soekris
net5501 (500Mhz Geode LX CPU):

Testing OSLEC with 128 taps (16 ms tail)
CPU executes 500.20 MIPS
-

Method 1: gettimeofday() at start and end
  671 ms for 10s of speech
  33.56 MIPS
  14.90 instances possible at 100% CPU load
Method 2: samples clock cycles at start and end
  33.56 MIPS
  14.90 instances possible at 100% CPU load
Method 3: samples clock cycles for each call, IIR average
  cycles_worst 64273 cycles_last 3849 cycles_av: 4018
  32.14 MIPS
  15.56 instances possible at 100% CPU load

-- Brandon

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Re: [asterisk-users] Asterisk sends packets on 8004/udp

[Brandon Black]

On 10/23/07, Yitzhak Bar Geva [EMAIL PROTECTED] wrote:

 For the life of me can't figure out why the Asterisk server generates an
 enormous quantity of outgoing packets on port 8004/udp. They seem to have no
 effect whether they are blocked by the firewall or not.
 We're running SIP. Everything appears to be OK (except a large number of
 ChanSpy write buffer overflow messages, which I also don't understand).
 How can I discover whether these packets are desirable or not? What should I
 do with them? I have found no documentation on port 8004.
 Thanks in advance,
 Yitzhak Bar Geva


The only normal service on port 8004 I've found documentation on is
Shoutcast (icecast), and people do sometimes configure Asterisk to use
shoutcast streams for music on hold.  Other than that, most of the
rest of the info on 8004 (on Google anyways) is about a remotely
accessible exploit again certain Symantec anti-virus engines.  So if
it isn't a shoutcasted audio stream you've forgotten about, you might
want to check if your server has been compromised and is being used to
scan the rest of the net for vulnerable Symantec software or something
like that.

-- Brandon

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[asterisk-users] net5501 + TDM400P?

[Brandon Black]

Hi,

  I'm relatively new to Asterisk, and I'm looking to build a tiny
system for home use.

  For context, at home I've got a line from Vonage (last I heard, they
won't give out SIP credentials and let you use random
hardware/software), which comes out as an analog line with a dialtone,
and I'll be treating that as if it were a regular PSTN connection.  I
also work from home, and my company runs an Asterisk server at the
main office.  When I signed on they gave me a cheap Grandstream desk
phone to connect to the corporate Asterisk server from home with.  I
also have a really nice DECT6 cordless phone system set up with
handsets all around the house, currently plugged into the Vonage line.

  What I'd like to do is set up an Asterisk box with 1x FXS (to the
cordless phone base station) and 1x FXO (to the Vonage
pseudo-PSTN-line), and also have it act as a SIP client to the office
Asterisk system, and let the Grandstream be a client to my Asterisk,
and configure it up so that both the Grandstream and the cordless
system can be used to answer and dial from both my office and home
lines.

  So we're talking a total of two extensions (one FXS, one
SIP/ethernet deskphone device)  and two connections to the outside
world (one FXO pseudo-PSTN, and SIP to the office), and a maximum of
two concurrent telephone calls going through the system.

  What I'm considering hardware-wise is a Soekris net5501 paired with
a Digium TDM400P equipped with 1xFXO and 1xFXS (might add a second FXS
later down the road).  I'm a pretty well-versed linux hacker, so I'm
not too worried about being able to get the software side up and
running.  What I'm really looking for is advice and info from people
that have tried this (or similar) hardware setups on the following:

1) Does the Soekris case fit a TDM400P card inside of it?  I don't
mind if I have to get out the dremel to get the ports exposed, but
does it fit inside at all?

2) With a net5501+TDM400P+1xFXS, if I use the Soekris 2.5A power
supply, will I need the extra external 12V supply (the digium one) to
supply power for the FXS module?  Some things I read seem to indicate
that you always need it, some don't...?  Does anything change on this
if/when I put in a second FXS port?

3) How much storage space do I really need to get one of the common
embedded Asterisk distros on there, and also leave room for a good
amount of voicemail, and room to hack with cool things in the
dialplan, etc?  Would you recommend a 2.5-in HDD, or can we fit this
all in compactflash?  I don't really have any ideas on estimating
voicemail space consumption, or commonly fun things people do with
modules and dialplans that might suck extra space down the road.

4) If as I suspect the 2.5in HDD is going to be a better bet
space-wise, does this change anything about the power situation from
question 2?

Any info appreciated,

-- Brandon

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