[asterisk-bugs] Strange DTMFs during zap call

[Stanislav Dekov]

Hi all,

I have machine with asterisk 1.4.11, zaptel 1.4.4 and four 24-port FXS 
Xorcom Astribank, on CentOS 4.5.

After update to current asterisk/zaptel release the following problem 
appear.

During conversation one of the parties randomly hears DTMF sounds, and 
on the other side during DTMFs, sound breaks.

This happens on random intervals during the day. CPU usage is 20-30%, 
which is normal for corporate PBX.

I've tried with restart of all hardware, but without any effect.

Here is a part of asterisk log:

[Sep 18 16:46:15] DTMF[30983]: channel.c:2408 __ast_read: DTMF begin 'C' 
received on Zap/38-1
[Sep 18 16:46:15] DTMF[30983]: channel.c:2418 __ast_read: DTMF begin 
passthrough 'C' on Zap/38-1
[Sep 18 16:46:15] DTMF[30983]: channel.c:2346 __ast_read: DTMF end '1' 
received on Zap/38-1, duration 77 ms
[Sep 18 16:46:15] DTMF[30983]: channel.c:2387 __ast_read: DTMF end 
accepted with begin '1' on Zap/38-1
[Sep 18 16:46:15] DTMF[30983]: channel.c:2396 __ast_read: DTMF end '1' 
has duration 77 but want minimum 80, emulating on Zap/38-1
[Sep 18 16:46:15] DTMF[30983]: channel.c:2465 __ast_read: DTMF end 
emulation of '1' queued on Zap/38-1
..........
[Sep 18 16:46:26] DTMF[30983]: channel.c:2408 __ast_read: DTMF begin 'C' 
received on Zap/38-1
[Sep 18 16:46:26] DTMF[30983]: channel.c:2418 __ast_read: DTMF begin 
passthrough 'C' on Zap/38-1
[Sep 18 16:46:26] DTMF[30983]: channel.c:2346 __ast_read: DTMF end '1' 
received on Zap/38-1, duration 77 ms
[Sep 18 16:46:26] DTMF[30983]: channel.c:2387 __ast_read: DTMF end 
accepted with begin '1' on Zap/38-1
[Sep 18 16:46:26] DTMF[30983]: channel.c:2396 __ast_read: DTMF end '1' 
has duration 77 but want minimum 80, emulating on Zap/38-1
[Sep 18 16:46:26] DTMF[30983]: channel.c:2465 __ast_read: DTMF end 
emulation of '1' queued on Zap/38-1
[Sep 18 16:46:28] DTMF[31267]: channel.c:2346 __ast_read: DTMF end '1' 
received on Zap/76-1, duration 61 ms
[Sep 18 16:46:28] DTMF[31267]: channel.c:2382 __ast_read: DTMF begin 
emulation of '1' with duration 80 queued on Zap/76-1
[Sep 18 16:46:28] DTMF[31267]: channel.c:2465 __ast_read: DTMF end 
emulation of '1' queued on Zap/76-1
.........
[Sep 20 16:47:48] DTMF[29179]: channel.c:2408 __ast_read: DTMF begin '1' 
received on Zap/135-1
[Sep 20 16:47:48] DTMF[29179]: channel.c:2418 __ast_read: DTMF begin 
passthrough '1' on Zap/135-1
[Sep 20 16:47:48] DTMF[29179]: channel.c:2346 __ast_read: DTMF end '1' 
received on Zap/135-1, duration 60 ms
[Sep 20 16:47:48] DTMF[29179]: channel.c:2387 __ast_read: DTMF end 
accepted with begin '1' on Zap/135-1
[Sep 20 16:47:48] DTMF[29179]: channel.c:2396 __ast_read: DTMF end '1' 
has duration 60 but want minimum 80, emulating on Zap/135-1
[Sep 20 16:47:48] DTMF[29179]: channel.c:2465 __ast_read: DTMF end 
emulation of '1' queued on Zap/135-1
[Sep 20 16:48:11] DTMF[29179]: channel.c:2408 __ast_read: DTMF begin 'C' 
received on Zap/150-1
[Sep 20 16:48:11] DTMF[29179]: channel.c:2418 __ast_read: DTMF begin 
passthrough 'C' on Zap/150-1
[Sep 20 16:48:11] DTMF[29179]: channel.c:2346 __ast_read: DTMF end '1' 
received on Zap/150-1, duration 79 ms
[Sep 20 16:48:11] DTMF[29179]: channel.c:2387 __ast_read: DTMF end 
accepted with begin '1' on Zap/150-1
[Sep 20 16:48:11] DTMF[29179]: channel.c:2396 __ast_read: DTMF end '1' 
has duration 79 but want minimum 80, emulating on Zap/150-1
[Sep 20 16:48:11] DTMF[29179]: channel.c:2465 __ast_read: DTMF end 
emulation of '1' queued on Zap/150-1
[Sep 20 16:48:32] DTMF[29179]: channel.c:2408 __ast_read: DTMF begin 'A' 
received on Zap/150-1
[Sep 20 16:48:32] DTMF[29179]: channel.c:2418 __ast_read: DTMF begin 
passthrough 'A' on Zap/150-1
[Sep 20 16:48:32] DTMF[29179]: channel.c:2346 __ast_read: DTMF end 'A' 
received on Zap/150-1, duration 79 ms
[Sep 20 16:48:32] DTMF[29179]: channel.c:2387 __ast_read: DTMF end 
accepted with begin 'A' on Zap/150-1
[Sep 20 16:48:32] DTMF[29179]: channel.c:2396 __ast_read: DTMF end 'A' 
has duration 79 but want minimum 80, emulating on Zap/150-1
[Sep 20 16:48:32] DTMF[29179]: channel.c:2465 __ast_read: DTMF end 
emulation of 'A' queued on Zap/150-1


Is anybody have the same problem?

Regards,

-- 
Stanislav Dekov