[Asterisk-Users] Re: Autio cut off at beginning of call
Keith O'Brien
keitheobrien at yahoo.com
Tue Jan 25 18:24:18 MST 2005
For what it is worth I am experiencing the exact same problem with the
latest CVS. I have tried numerous IAX providers and the problem follows so
it isn't the provider. Are you running stable or CVS?
I think that you hit it on the head, the fact that audio is being sent prior
to an IAX ANSWER seems like a bug to me. I verified that I am seeing this
same symptom of audio packets before the answer packet.
If no one disagrees I will open a bug.
==========================================
> Check the load on your server(s).
>
Load average is always at or near 0. This is on a dedicated machine doing
nothing but routing calls. No voicemail, music on hold, etc.
I noticed something in a packet capture that may or may not be significant.
When I place a call, the capture shows about 3 seconds of audio data before
the IAX ANSWER packet. Could this be a symptom of the problem?
Below is a packet dump if an outbound IAX call made from a Zaptel FXS
channel.
No. Time Source Destination Protocol
Info
9 11.987842 asterisk 66.234.228.170 IAX2 IAX,
source call# 4, timestamp 3ms REGREQ
11 12.086365 66.234.228.170 asterisk IAX2 IAX,
source call# 356, timestamp 4ms REGACK
12 12.086456 asterisk 66.234.228.170 IAX2 IAX,
source call# 4, timestamp 4ms ACK
13 12.158422 asterisk 66.234.228.160 IAX2 IAX,
source call# 6, timestamp 14ms NEW
14 12.258421 66.234.228.160 asterisk IAX2 IAX,
source call# 228, timestamp 10ms AUTHREQ
15 12.258514 asterisk 66.234.228.160 IAX2 IAX,
source call# 6, timestamp 114ms AUTHREP
16 12.383395 66.234.228.160 asterisk IAX2 IAX,
source call# 228, timestamp 109ms ACCEPT
17 12.383552 asterisk 66.234.228.160 IAX2 IAX,
source call# 6, timestamp 109ms ACK
18 12.397652 asterisk 66.234.228.160 IAX2 Voice,
source call# 6, timestamp 253ms, Raw mu-law data (G.711)
19 12.417636 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 273ms, Raw mu-law data (G.711)
20 12.437635 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 293ms, Raw mu-law data (G.711)
21 12.457634 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 313ms, Raw mu-law data (G.711)
22 12.477634 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 333ms, Raw mu-law data (G.711)
23 12.497634 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 353ms, Raw mu-law data (G.711)
24 12.498398 66.234.228.160 asterisk IAX2 IAX,
source call# 228, timestamp 253ms ACK
25 12.515119 66.234.228.160 asterisk IAX2
Control, source call# 228, timestamp 112ms stop sounds
26 12.515161 asterisk 66.234.228.160 IAX2 IAX,
source call# 6, timestamp 112ms ACK
27 12.517701 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 373ms, Raw mu-law data (G.711)
28 12.537634 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 393ms, Raw mu-law data (G.711)
29 12.557634 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 413ms, Raw mu-law data (G.711)
30 12.565685 66.234.228.160 asterisk IAX2
Control, source call# 228, timestamp 115ms unknown (0x0e)
31 12.565732 asterisk 66.234.228.160 IAX2 IAX,
source call# 6, timestamp 115ms ACK
32 12.577636 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 433ms, Raw mu-law data (G.711)
33 12.585428 66.234.228.160 asterisk IAX2 Voice,
source call# 228, timestamp 20ms, Raw mu-law data (G.711)
34 12.585505 asterisk 66.234.228.160 IAX2 IAX,
source call# 6, timestamp 20ms ACK
35 12.597633 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 453ms, Raw mu-law data (G.711)
36 12.606341 66.234.228.160 asterisk IAX2 Mini
packet, source call# 228, timestamp 40ms, Raw mu-law data (G.711)
37 12.617633 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 473ms, Raw mu-law data (G.711)
.
.
. Nothing of interest in here, just audio data
.
.
327 15.477620 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 3333ms, Raw mu-law data (G.711)
328 15.486797 66.234.228.160 asterisk IAX2 Mini
packet, source call# 228, timestamp 2920ms, Raw mu-law data (G.711)
--->329 15.487713 66.234.228.160 asterisk IAX2
Control, source call# 228, timestamp 2923ms ANSWER
330 15.487734 asterisk 66.234.228.160 IAX2 IAX,
source call# 6, timestamp 2923ms ACK
331 15.497627 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 3353ms, Raw mu-law data (G.711)
332 15.517623 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 3373ms, Raw mu-law data (G.711)
333 15.537620 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 3393ms, Raw mu-law data (G.711)
334 15.557619 asterisk 66.234.228.160 IAX2 Mini
packet, source call# 6, timestamp 3413ms, Raw mu-law data (G.711)
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