[Asterisk-Users] chan_zap.c - echo cancelation getting in the way of dialing????

[mvickers at real.com]

It seems consistant after dialing dozens of times that the call that
doesn't go through is the one the gets the log message  "No
echocancellation requested" (chan_zap.c) and the "Scheduleing timer"
(channel.c)  in the middle of receiving the DTMF tones.

I'm now using the T400P card last week very simular problems the the T100P
(although I think I was actually loosing digits with the T100P card)


*******************
Example of failure Below  Echo cancelation in middle of DTMF tones not all
digits received.
*******************

Oct  6 10:55:12 DEBUG[27664]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 6 on Zap/18-1
Oct  6 10:55:13 DEBUG[27664]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 9 on Zap/18-1
Oct  6 10:55:13 DEBUG[27664]: File chan_zap.c, Line 1056 (zt_enable_ec): No echocancellation requested
Oct  6 10:55:16 DEBUG[27664]: File channel.c, Line 953 (ast_settimeout): Scheduling timer at 160 sample intervals
Oct  6 10:55:16 DEBUG[27664]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 7 on Zap/18-1
Oct  6 10:55:21 DEBUG[27664]: File channel.c, Line 953 (ast_settimeout): Scheduling timer at 0 sample intervals
Oct  6 10:55:21 DEBUG[27664]: File channel.c, Line 953 (ast_settimeout): Scheduling timer at 0 sample intervals
Oct  6 10:55:21 DEBUG[27664]: File chan_zap.c, Line 1629 (zt_hangup): Hangup: channel: 18 index = 0, normal = 36, callwait = -1, thirdcall = -1
Oct  6 10:55:21 DEBUG[27664]: File chan_zap.c, Line 1996 (zt_setoption): Set option TDD MODE, value: OFF(0) on Zap/18-1
Oct  6 10:55:21 DEBUG[27664]: File chan_zap.c, Line 1028 (update_conf): Updated conferencing on 18, with 0 conference users
Oct  6 10:56:15 DEBUG[5126]: File chan_sip.c, Line 657 (create_addr): Setting NAT on RTP to 0
Oct  6 10:56:15 DEBUG[5126]: File chan_sip.c, Line 548 (__sip_ack): Stopping retransmission on '0c2586220717bdda69153c53788bcf1d at 172.20.1.67'
of Request 102: Found


****************************
Working call
****************************

Oct  6 10:59:55 DEBUG[28688]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 6 on Zap/19-1
Oct  6 10:59:56 DEBUG[28688]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 9 on Zap/19-1
Oct  6 10:59:56 DEBUG[28688]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 7 on Zap/19-1
Oct  6 10:59:56 DEBUG[28688]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 1 on Zap/19-1
Oct  6 10:59:56 DEBUG[28688]: File chan_zap.c, Line 1056 (zt_enable_ec): No echocancellation requested
Oct  6 10:59:56 DEBUG[28688]: File chan_sip.c, Line 657 (create_addr): Setting NAT on RTP to 0
Oct  6 10:59:56 DEBUG[28688]: File chan_sip.c, Line 857 (sip_call): Outgoing Call for mvickers
Oct  6 10:59:56 DEBUG[5126]: File chan_sip.c, Line 568 (__sip_semi_ack): (Provisional) Stopping retransmission (but retaining packet) on
'5ecb985524e3ec232cf3e54d59674900 at 172.20.1.67' Request 102: Found
Oct  6 10:59:57 DEBUG[5126]: File chan_sip.c, Line 568 (__sip_semi_ack): (Provisional) Stopping retransmission (but retaining packet) on
'5ecb985524e3ec232cf3e54d59674900 at 172.20.1.67' Request 102: Found
Oct  6 10:59:57 DEBUG[28688]: File chan_zap.c, Line 3612 (zt_indicate):
Received AST_CONTROL_PROGRESS on Zap/19-1


***********************************
A call that got all the digits but still fialed:
************************************


Oct  6 11:08:41 DEBUG[40976]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 6 on Zap/6-1
Oct  6 11:08:42 DEBUG[40976]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 9 on Zap/6-1
Oct  6 11:08:42 DEBUG[40976]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 7 on Zap/6-1
Oct  6 11:08:42 DEBUG[40976]: File chan_zap.c, Line 1056 (zt_enable_ec): No echocancellation requested
Oct  6 11:08:45 DEBUG[40976]: File channel.c, Line 953 (ast_settimeout): Scheduling timer at 160 sample intervals
Oct  6 11:08:45 DEBUG[40976]: File chan_zap.c, Line 3428 (zt_read): DTMF digit: 1 on Zap/6-1
Oct  6 11:08:50 DEBUG[40976]: File channel.c, Line 953 (ast_settimeout): Scheduling timer at 0 sample intervals
Oct  6 11:08:50 DEBUG[40976]: File channel.c, Line 953 (ast_settimeout): Scheduling timer at 0 sample intervals
Oct  6 11:08:50 DEBUG[40976]: File chan_zap.c, Line 1629 (zt_hangup): Hangup: channel: 6 index = 0, normal = 24, callwait = -1, thirdcall = -1
Oct  6 11:08:50 DEBUG[40976]: File chan_zap.c, Line 1996 (zt_setoption): Set option TDD MODE, value: OFF(0) on Zap/6-1
Oct  6 11:08:50 DEBUG[40976]: File chan_zap.c, Line 1028 (update_conf): Updated conferencing on 6, with 0 conference users




Mark Vickers, RealNetworks Inc.  Desk: (206) 674-2391  Fax: (206)674-3588