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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