Call are get disconnected automatically

Hi
I am having a some strange problem
for some times the incoming and outgoing call are get disconnected automatically. in between call i get a beep tone and the call is get is disconnected.

on console i got following message

Aug 11 17:37:20 ERROR[5099]: chan_sip.c:10990 handle_request_subscribe: Got SUBSCRIBE for extension 09890561809@fidel from 192.168.1.35, but there is no hint for that extension
– Hungup ‘Zap/1-1’

please help me.

Pravin

that message does not matter. Your phones are trying to use BLF (speed dial lights up when guy is on the phone) but you have not set it up correctly.

Don’t you get ANY cli output for the call itself? try increasing the verbosity…

Are you using
callprogress in zapata.conf ?
or
busycount ?

What kind of hadware do you have to interface with the PSTN ?

Hi,
I using the call progress functinality from zapata.conf. but I comment it
still I having the problem
currently i using the follwoing parameter in zapata.conf

signalling=fxo_ls
rxwink=300
usecallerid=yes
hidecallerid=no
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
rxgain=0.0
txgain=0.0
group=1
ringtimeout=8000
musiconhold=default

dring1=95,0,0
dring1context=internal1
dring2=325,95,0
dring2context=internal2
; If no pattern is matched here is where we go.
;context=local
;channel => 1
;channel => 2

context=default
switchtype=national
signalling=fxs_ks
rxwink=300 ; Atlas seems to use long (250ms) winks
channel => 1

and I using the ambient MD3200 X101P card.