[asterisk-ss7] libss7+sangoma problem

[Shaon]

Hii,

I am having problem with sangoma+libss7. sometime i saw that kinda 
error on differnet CIC at asterisk cli  "chan_zap.c: REL on channel 
(CIC %) without owner!". and asterisk goes down 3 to 4 times in a day.

zaptel.conf

#Sangoma A108 port 1 [slot:13 bus:9 span:1] <wanpipe1>
span=1,0,0,ccs,hdb3
bchan=2-15,17-31
dchan=1

#Sangoma A108 port 2 [slot:13 bus:9 span:2] <wanpipe2>
span=2,0,0,ccs,hdb3
bchan=32-46,48-62

zapata.conf

signalling=ss7
ss7type = itu
linkset = 1
pointcode = 4521
adjpointcode = 9321
defaultdpc = 9321
sigchan = 1
cicbeginswith=2
channel = 2-15,17-31,32-46,48-62

am i doing anything wrong?
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