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Vladimir Mikhelson
2011-Apr-07 14:58 UTC
[asterisk-users] Asterisk 1.8.x Skips DTMF Digits on a First DAHDI Initiated Call

Hi,

I know it sounds weird, and this is part of the reason I have not
reported that sooner.    As I upgraded from 1.6.2.x to 1.8.x several
months ago I am experiencing this problem.   If a call is initiated from
a DAHDI extension after no DAHDI extensions were used for some time,
arbitrary DTMF digits are skipped and the call fails.  If the call is
redialed it goes through.  Normally just one (1) redial attempt is
sufficient.  Replicated from different analog phones.

Troubleshooting and observations:
1. Provided external power to the TDM400P with FXS daughter cards.  It
did not help.
2. Using RXGAIN / TXGAIN in /etc/asterisk/dahdi-channels.conf makes
situation worse.
3. Played with echo cancellation parameters with no luck.

Any ideas will be appreciated.

Thank you,
Vladimir


*DTMF log samples for two consecutive test calls each.
*
1. Called ext. 400.  Dialed "400" -- call failed, redialed by the
"Redial" button -- call went through.

1.1. 08:46:57 -- passes "40" to the channel and fails
1.2. 08:48:17 -- passes "400" to the channel and goes through.

[Apr  7 08:46:57] DTMF[9076] channel.c: DTMF begin '4' received on
DAHDI/5-1
[Apr  7 08:46:57] DTMF[9076] channel.c: DTMF begin ignored '4' on
DAHDI/5-1
[Apr  7 08:46:57] DTMF[9076] channel.c: DTMF end '4' received on
DAHDI/5-1, duration 89 ms
[Apr  7 08:46:57] DTMF[9076] channel.c: DTMF end passthrough '4' on
DAHDI/5-1
[Apr  7 08:46:57] DTMF[9076] channel.c: DTMF begin '0' received on
DAHDI/5-1
[Apr  7 08:46:57] DTMF[9076] channel.c: DTMF begin ignored '0' on
DAHDI/5-1
[Apr  7 08:46:58] DTMF[9076] channel.c: DTMF end '0' received on
DAHDI/5-1, duration 76 ms
[Apr  7 08:46:58] DTMF[9076] channel.c: DTMF end passthrough '0' on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF begin '4' received on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF begin ignored '4' on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF end '4' received on
DAHDI/5-1, duration 89 ms
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF end passthrough '4' on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF begin '0' received on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF begin ignored '0' on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF end '0' received on
DAHDI/5-1, duration 89 ms
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF end passthrough '0' on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF begin '0' received on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF begin ignored '0' on
DAHDI/5-1
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF end '0' received on
DAHDI/5-1, duration 76 ms
[Apr  7 08:48:17] DTMF[9115] channel.c: DTMF end passthrough '0' on
DAHDI/5-1


2. Called ext. 330.  Dialed "330" -- call failed, redialed by the
"Redial" button -- call went through.

2.1. 09:48:15 -- passes "3" to the channel and fails
2.2. 09:48:30 -- passes "330" to the channel and goes through.

[Apr  7 09:48:15] DTMF[9536] channel.c: DTMF begin '3' received on
DAHDI/5-1
[Apr  7 09:48:15] DTMF[9536] channel.c: DTMF begin ignored '3' on
DAHDI/5-1
[Apr  7 09:48:15] DTMF[9536] channel.c: DTMF end '3' received on
DAHDI/5-1, duration 89 ms
[Apr  7 09:48:15] DTMF[9536] channel.c: DTMF end passthrough '3' on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF begin '3' received on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF begin ignored '3' on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF end '3' received on
DAHDI/5-1, duration 89 ms
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF end passthrough '3' on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF begin '3' received on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF begin ignored '3' on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF end '3' received on
DAHDI/5-1, duration 89 ms
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF end passthrough '3' on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF begin '0' received on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF begin ignored '0' on
DAHDI/5-1
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF end '0' received on
DAHDI/5-1, duration 76 ms
[Apr  7 09:48:30] DTMF[9539] channel.c: DTMF end passthrough '0' on
DAHDI/5-1


*Configuration:
*
Asterisk 1.8.3.2
DAHDI Version: 2.4.1 Echo Canceller: MG2, HPEC
FreePBX <http://www.freepbx.org> 2.9.0rc1.1

/*pbx*CLI> dahdi show status*/
Description                              Alarms  IRQ    bpviol CRC4  
Fra Codi Options  LBO
Wildcard TDM410P Board 1                 OK      0      0      0     
CAS Unk           0 db (CSU)/0-133 feet (DSX-1)
Wildcard TDM400P REV I Board 5           OK      0      0      0     
CAS Unk           0 db (CSU)/0-133 feet (DSX-1)

/*/etc/dahdi/system.conf*/
# Autogenerated by /usr/sbin/dahdi_genconf on Sun Sep 26 00:01:18 2010
# If you edit this file and execute /usr/sbin/dahdi_genconf again,
# your manual changes will be LOST.
# Dahdi Configuration File
#
# This file is parsed by the Dahdi Configurator, dahdi_cfg
#
# Span 1: WCTDM/0 "Wildcard TDM410P Board 1" (MASTER)
fxsks=1
echocanceller=hpec,1
fxsks=2
echocanceller=hpec,2
fxsks=3
echocanceller=hpec,3
# channel 4, WCTDM/0/3, no module.

# Span 2: WCTDM/4 "Wildcard TDM400P REV I Board 5"
fxoks=5
echocanceller=hpec,5
fxoks=6
echocanceller=hpec,6
fxoks=7
echocanceller=hpec,7
fxoks=8
echocanceller=hpec,8

# Global data

loadzone        = us
defaultzone     = us

/*/etc/asterisk/chan_dahdi.conf*/
;# Flash Operator Panel will parse this file for dahdi trunk buttons
;# AMPLABEL will be used for the display labels on the buttons

;# %c Dahdi Channel number
;# %n Line number
;# %N Line number, but restart counter
;# Example:
;# ;##AMPLABEL:Channel %c - Button %n

;AMPLABEL:CO %c

;# For Dahdi/* buttons use the following
;# (where x=number of buttons to dislpay)
;# ;##AMPWILDCARDLABEL(x):DAHDI %c


[channels]
language=en

; include dahdi-cahnnels.conf generated by dahdi_genconfig
#include dahdi-channels.conf

; include dahdi extensions defined in FreePBX
#include chan_dahdi_additional.conf
#include chan_dahdi_custom.conf

; From chan_dahdi.conf.template
; XTDM20B Port #1,2 plugged into PSTN
;AMPLABEL:Channel %c - Button %n
;context=from-pstn
;signalling=fxs_ks
;faxdetect=incoming
;usecallerid=yes
;echocancel=yes
;echocancelwhenbridged=no
;echotraining=800
;group=0
;channel=1-2

/*/etc/asterisk/dahdi-channels.conf*/
; Autogenerated by /usr/sbin/dahdi_genconf on Sun Sep 26 00:01:19 2010
; If you edit this file and execute /usr/sbin/dahdi_genconf again,
; your manual changes will be LOST.
; Dahdi Channels Configurations (chan_dahdi.conf)
;
; This is not intended to be a complete chan_dahdi.conf. Rather, it is
intended
; to be #include-d by /etc/chan_dahdi.conf that will include the global
settings
;

; Span 1: WCTDM/0 "Wildcard TDM410P Board 1" (MASTER)
;;; line="1 WCTDM/0/0 FXSKS"
;AMPLABEL:CO 65686114
usignalling=fxs_ks
callerid=asreceived
echocancel=512
echocancelwhenbridged=yes
echotraining=800
group=0
context=from-dahdi
faxbuffers => 12,half
faxdetect=incoming
;;rxgain=5.0
;;txgain=0.0
channel => 1

;;; line="2 WCTDM/0/1 FXSKS"
;AMPLABEL:CO 7154167
signalling=fxs_ks
callerid=asreceived
echocancel=512
echocancelwhenbridged=yes
echotraining=800
group=0
context=from-dahdi
faxbuffers => 12,half
faxdetect=incoming
;rxgain=11.75
;;rxgain=5.0
;;txgain=0.0
channel => 2

;;; line="3 WCTDM/0/2 FXSKS"
;AMPLABEL:CO 6568612
signalling=fxs_ks
callerid=asreceived
echocancel=512
echocancelwhenbridged=yes
echotraining=800
group=0
context=from-dahdi
faxbuffers => 12,half
faxdetect=incoming
;;rxgain=5.0
;;txgain=0.0
channel => 3


; Span 2: WCTDM/4 "Wildcard TDM400P REV I Board 5"
;;; line="5 WCTDM/4/0 FXOKS"
signalling=fxo_ks
callerid="Channel 5" <4025>
mailbox=4025
echocancel=512
echocancelwhenbridged=yes
echotraining=800
group=5
context=from-internal
channel => 5

;;; line="6 WCTDM/4/1 FXOKS"
signalling=fxo_ks
callerid="Channel 6" <4026>
mailbox=4026
echocancel=512
echocancelwhenbridged=yes
echotraining=800
group=5
context=from-internal
channel => 6

;;; line="7 WCTDM/4/2 FXOKS"
signalling=fxo_ks
callerid="Channel 7" <4027>
mailbox=4027
echocancel=512
echocancelwhenbridged=yes
echotraining=800
group=5
context=from-internal
channel => 7

;;; line="8 WCTDM/4/3 FXOKS"
signalling=fxo_ks
callerid="Channel 8" <4028>
mailbox=4028
echocancel=512
echocancelwhenbridged=yes
echotraining=800
group=5
context=from-internal
channel => 8

/*/etc/asterisk/chan_dahdi_additional.conf*/
;--------------------------------------------------------------------------------;
; Do NOT edit this file as it is auto-generated by FreePBX. All
modifications to ;
; this file must be done via the web gui. There are alternative files to
make    ;
; custom modifications, details at:
http://freepbx.org/configuration_files       ;
;--------------------------------------------------------------------------------;
;

;;;;;;[421]
signalling=fxo_ks
pickupgroupmailbox=421 at default
immediate=no
echotraining=800
echocancelwhenbridged=yes
echocancel=yes
context=from-internal
callprogress=no
callgroupcallerid=device <421>
busydetect=no
busycount=7
accountcodechannel=>5

;;;;;;[422]
signalling=fxo_ks
pickupgroupmailbox=422 at default
immediate=no
echotraining=800
echocancelwhenbridged=yes
echocancel=yes
context=from-internal
callprogress=no
callgroupcallerid=device <422>
busydetect=no
busycount=7
accountcodechannel=>6

;;;;;;[423]
signalling=fxo_ks
pickupgroupmailbox=423 at default
immediate=no
echotraining=800
echocancelwhenbridged=yes
echocancel=yes
context=from-internal
callprogress=no
callgroupcallerid=device <423>
busydetect=no
busycount=7
accountcodechannel=>7

;;;;;;[430]
signalling=fxo_ks
pickupgroupmailbox=430 at default
immediate=no
echotraining=800
echocancelwhenbridged=yes
echocancel=yes
context=from-internal
callprogress=no
callgroupcallerid=device <430>
busydetect=no
busycount=7
accountcodechannel=>8

/*/etc/asterisk/chan_dahdi_custom.conf*/
<empty>


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