[Asterisk-Users] asterisk1.2.1/PRI-E1 outbound call issues

[Adnan Ahmed]

Hello List,
I have a following setup:
1-Intel Zeon 3.0 Ghz dual Zeon capable board
2-Ram 1GB
3-OS SLES9 SP2
4-Asterisk-1.2.1
5-*Wildcard TE110P(Using as E1)
6-Wildcard TDM03B

PRI/E1 is up and running perfectly inbound/outbound calls goes perfectly in
start but after sometime almost all outbound calls disconnected/hangup
automatically for example user is dialout and he/she is talking then after
sometime call disconnected  inbound calls are also facing same issue but
rate is very low sometimes while outbound calls becomes nightmare any idea
here is my config:

zaptel.conf:
span=1,0,0,ccs,hdb3,crc4,yellow
bchan=1-15,17-31
dchan=16
#dchan=31
fxsks=33-35
loadzone = us
defaultzone=us

zapata.conf:
[channels]
;
calleridasreceived=yes
usecallerid=yes
hidecallerid=no
;callwaitingcallerid=yes
;threewaycalling=yes
transfer=yes
callwaiting=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
echotraining=800
relaxdtmf=yes
;faxdetect=incoming
immediate=no
;Callgroup=1
;Pickupgroup=1

;
;
context=from-pstn
;switchtype=national
signalling=pri_cpe
;faxdetect=incoming
usecallerid=yes
cidsignalling=bell
cidstart=ring
pridialplan=national
prilocaldialplan=national
nationalprefix=0
localprefix=021
busydetect=yes
echocancel=yes
callerid=yes
echocancelwhenbridged=yes
echotraining=800
group=1
channel=1-15,17-31
;Callgroup=1
;Pickupgroup=1

context=incoming-analog
group=2
signalling=fxs_ks
channel=33-35


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