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Summary:ASTERISK-14039: hpec echo cancellation not working in Asterisk 1.4.24/dahdi-latest
Reporter:Papadomitsos Panagiotis (priestjim)Labels:
Date Opened:2009-04-29 16:15:47Date Closed:2009-05-03 03:03:08
Priority:MajorRegression?No
Status:Closed/CompleteComponents:Channels/chan_dahdi
Versions:Frequency of
Occurrence
Related
Issues:
Environment:Attachments:
Description:Ubuntu 9.04 (happened to 8.10 also)
Linux 2.6.23.17 & 2.6.28 from source
Asterisk 1.4.24.1 from source
Asterisk Addons 1.4.8
dahdi-linux-complete-2.1.0.4+2.1.0.2
Digium TDM410P & TDM400

Echo cancellation is not working when hpec is selected. dahdi initializes properly, license is verified and everything is ok. When making placing a call however, I get horrible echo which I did not get before switching from zaptel/asterisk 1.4.21 to dahdi/asterisk 1.4.24. Debugging got me this:

[Apr 29 23:44:54] DEBUG[4538]: chan_dahdi.c:2294 dahdi_call: Dialing '4001'
[Apr 29 23:44:54] DEBUG[4538]: chan_dahdi.c:2372 dahdi_call: Deferring dialing...
[Apr 29 23:44:55] DEBUG[4538]: chan_dahdi.c:5036 __dahdi_exception: Exception on 15, channel 1
[Apr 29 23:44:55] DEBUG[4538]: chan_dahdi.c:4131 dahdi_handle_event: Got event Hook Transition Complete(12) on channel 1 (index 0)
[Apr 29 23:44:55] DEBUG[4538]: chan_dahdi.c:4871 dahdi_handle_event: Sent deferred digit string: T4001w
[Apr 29 23:44:56] DEBUG[4538]: chan_dahdi.c:5036 __dahdi_exception: Exception on 15, channel 1
[Apr 29 23:44:56] DEBUG[4538]: chan_dahdi.c:4131 dahdi_handle_event: Got event Dial Complete(9) on channel 1 (index 0)
[Apr 29 23:44:56] DEBUG[4538]: chan_dahdi.c:1780 dahdi_enable_ec: Enabled echo cancellation on channel 1
[Apr 29 23:44:56] DEBUG[4538]: chan_iax2.c:3826 iax2_answer: Answering IAX2 call
[Apr 29 23:44:56] DEBUG[4538]: chan_dahdi.c:5462 dahdi_indicate: Requested indication 20 on channel DAHDI/1-1
[Apr 29 23:44:57] DEBUG[4530]: chan_iax2.c:7625 socket_process: Ooh, voice format changed to 4
[Apr 29 23:44:57] DEBUG[4524]: chan_iax2.c:7576 socket_process: Received iseqno 5 not within window 6->6
[Apr 29 23:44:57] DEBUG[4538]: chan_dahdi.c:5361 my_dahdi_write: Write returned -1 (Resource temporarily unavailable) on channel 1
[Apr 29 23:44:57] DEBUG[4538]: chan_dahdi.c:5361 my_dahdi_write: Write returned -1 (Resource temporarily unavailable) on channel 1
[Apr 29 23:44:57] DEBUG[4538]: chan_dahdi.c:5361 my_dahdi_write: Write returned -1 (Resource temporarily unavailable) on channel 1
[Apr 29 23:44:57] DEBUG[4538]: chan_dahdi.c:5361 my_dahdi_write: Write returned -1 (Resource temporarily unavailable) on channel 1
[Apr 29 23:44:57] DEBUG[4538]: chan_dahdi.c:5361 my_dahdi_write: Write returned -1 (Resource temporarily unavailable) on channel 1
[Apr 29 23:44:57] DEBUG[4538]: chan_dahdi.c:5361 my_dahdi_write: Write returned -1 (Resource temporarily unavailable) on channel 1
[Apr 29 23:44:57] DEBUG[4538]: chan_dahdi.c:5361 my_dahdi_write: Write returned -1 (Resource temporarily unavailable) on channel 1
[..]
[Apr 29 23:44:59] DEBUG[4538]: chan_dahdi.c:2811 dahdi_hangup: dahdi_hangup(DAHDI/1-1)
[Apr 29 23:44:59] DEBUG[4538]: chan_dahdi.c:2844 dahdi_hangup: Hangup: channel: 1 index = 0, normal = 15, callwait = -1, thirdcall = -1
[Apr 29 23:44:59] DEBUG[4538]: chan_dahdi.c:1812 dahdi_disable_ec: disabled echo cancellation on channel 1
[Apr 29 23:44:59] DEBUG[4538]: chan_dahdi.c:3280 dahdi_setoption: Set option TDD MODE, value: OFF(0) on DAHDI/1-1

Any help would be appreciated. I tried to provide any relevant information I could think of, please notify me if you need anything more.

****** ADDITIONAL INFORMATION ******

TDM400P and TDM410P configs are on different systems but identical unless on device specific options.

/etc/dahdi/system.conf
loadzone=gr
defaultzone=gr
fxsks=1
channels=1
echocanceller=hpec,1

/etc/dahdi/modules
wctdm24xxp
dahdi_dummy

dmesg (/usr/sbin/dahdihpec_enable symlink to zaphpec_enable):
dahdi: Telephony Interface Registered on major 196
dahdi: Version: 2.1.0.4
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 24 (level, low) -> IRQ 24
Port 1: Installed -- AUTO FXO (FCC mode)
Port 2: Not installed
Port 3: Not installed
Port 4: Not installed
VPM100: Not Present
Found a Wildcard TDM: Wildcard TDM410P (4 modules)
dahdi_dummy: RTC rate is 1024
dahdi: Registered tone zone 13 (Greece)
dahdi_echocan_hpec: Registered echo canceler 'HPEC'
Digium High-Performance Echo Canceller, version 10.04.001
Optimized for "nocona" CPU architecture
Coypright (C) 2006-2007 Digium, Inc. and Adaptive Digital Technologies, Inc.
This module is supplied under a commercial license granted by Digium, Inc.
Please see the full license text supplied by the accompanying
"register" utility, or ask for a copy from Digium.
hpec_license_check: License granted for 1 channels
dahdi_dummy: RTC rate is 1024
dahdi_echocan_hpec: Registered echo canceler 'HPEC'
Digium High-Performance Echo Canceller, version 10.04.001
Optimized for "nocona" CPU architecture
Coypright (C) 2006-2007 Digium, Inc. and Adaptive Digital Technologies, Inc.
This module is supplied under a commercial license granted by Digium, Inc.
Please see the full license text supplied by the accompanying
"register" utility, or ask for a copy from Digium.
hpec_license_check: License granted for 1 channels

/etc/asterisk/chan_dahdi.conf
[trunkgroups]

[channels]
language=gr
signalling=fxs_ks
transfer=yes
canpark=yes
cancallforward=yes
echocancel=1024
echocancelwhenbridged=no
context=from-zap-1
channel => 1
context=default
Comments:By: Papadomitsos Panagiotis (priestjim) 2009-04-29 16:26:50

I forgot to mention that I am running hpec-10.04.001-nocona
By: snuffy (snuffy) 2009-05-03 03:03:07

Hello priestjim,

This issue with HPEC will have to go through support@digium.com since its a supported product by digium.

You could test if echo cancellation works at all by trying 'mg2' as well, report that as well when you email digium for support.

thanks