[asterisk-users] Problem in Detecting Dtmf on FXO line.

Faisal Hanif faisal at vopium.com
Fri Jul 8 02:11:43 CDT 2011


Did u tried by disabling relaxdtmf?

 

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of DHAVAL
INDRODIYA
Sent: Friday, July 08, 2011 11:58 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] Problem in Detecting Dtmf on FXO line.

 

Hi All,

I am having Problem in detecting DTMF on analog lines. basically are system
is in india and telco provider is BSNL [Bharat sanchar Nigam LImited].

We have Purchased Analog card From chinaroby.com which is X1600P 16 port FXO
card. they also provide us wctdm.c file.

card is detected successfully, incoming and outgoing calls scenario is also
fine.

we are unable to receive dtmf properly it means there is some digit are
missing when we receive dtmf the ratio of sucess is about to 70% and 30% of
calls are getting wrong dtmf .

Dahdi version is 2.3.0.1 and asterisk version 1.6.0.24

I load module using 
modprobe wctdm opermod=INDIA cidbeforering=1 cidbuflen=1
fixedtimepolarity=16

here id  chan_dahdi.conf.

[trunkgroups] 
 
[channels] 
context=from-zaptel 
signalling=fxs_ks 
busydetect=yes 
busycount=4 
;rxwink=300              ; Atlas seems to use long (250ms) winks 
usecallerid=yes 
callerid=asreceived 
cidstart=polarity_in 
cidsignalling=dtmf 
hidecallerid=no 
callwaiting=yes 
usecallingpres=yes 
callwaitingcallerid=yes 
threewaycalling=yes 
transfer=yes 
canpark=yes 
cancallforward=yes 
callreturn=yes 
callprogess=yes 
echocancel=yes 
echocancelwhenbridged=no 
echotraining=800 
rxgain=0.0 
txgain=0.0 
;cid_rxgain=5.0 
relaxdtmf=yes 
callgroup=1 
pickupgroup=1 
toneduration=500 
;answeronpolarityswitch=yes 
hanguponpolarityswitch=yes 
;polarityonanswerdelay=1000 
 
group=0 
channel => 1 
;channel => 2 
;channel => 3 
;channel => 4 
;channel => 5 
;channel => 6 
;channel => 7 
;channel => 8 
;channel => 9 
;channel => 10 
;channel => 11 
;channel => 12 
;channel => 13 
;channel => 14 
;channel => 15 
;channel => 16


Also set tonezone = in in system.conf, tried many solutions and changed so
many parameters of chan_dahdi.cong but still i am not getting successful
result.


Please share your comments if anyone have idea for india specific region .

Regards
Dhaval



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