Hi All,<br><br>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].<br><br>We have Purchased Analog card From <a href="http://chinaroby.com">chinaroby.com</a> which is X1600P 16 port FXO card. they also provide us wctdm.c file.<br>
<br>card is detected successfully, incoming and outgoing calls scenario is also fine.<br><br>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 .<br>
<br>Dahdi version is 2.3.0.1 and asterisk version 1.6.0.24<br><br>I load module using <br>modprobe wctdm opermod=INDIA cidbeforering=1 cidbuflen=1 fixedtimepolarity=16<br><br>here id chan_dahdi.conf.<br><br>[trunkgroups]
<br> <br>[channels]
<br>context=from-zaptel
<br>signalling=fxs_ks
<br>busydetect=yes
<br>busycount=4
<br>;rxwink=300 ; Atlas seems to use long (250ms) winks
<br>usecallerid=yes
<br>callerid=asreceived
<br>cidstart=polarity_in
<br>cidsignalling=dtmf
<br>hidecallerid=no
<br>callwaiting=yes
<br>usecallingpres=yes
<br>callwaitingcallerid=yes
<br>threewaycalling=yes
<br>transfer=yes
<br>canpark=yes
<br>cancallforward=yes
<br>callreturn=yes
<br>callprogess=yes
<br>echocancel=yes
<br>echocancelwhenbridged=no
<br>echotraining=800
<br>rxgain=0.0
<br>txgain=0.0
<br>;cid_rxgain=5.0
<br>relaxdtmf=yes
<br>callgroup=1
<br>pickupgroup=1
<br>toneduration=500
<br>;answeronpolarityswitch=yes
<br>hanguponpolarityswitch=yes
<br>;polarityonanswerdelay=1000
<br> <br>group=0
<br>channel => 1
<br>;channel => 2
<br>;channel => 3
<br>;channel => 4
<br>;channel => 5
<br>;channel => 6
<br>;channel => 7
<br>;channel => 8
<br>;channel => 9
<br>;channel => 10
<br>;channel => 11
<br>;channel => 12
<br>;channel => 13
<br>;channel => 14
<br>;channel => 15
<br>;channel => 16<br><br><br>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.<br><br><br>Please share your comments if anyone have idea for india specific region .<br>
<br>Regards<br>Dhaval<br><br><br>