05-11-2007 12:07 PM
I have a cisco as5400 as voip gateway, when call coming in from PSTN T1, the gateway send invite to our sip server, the sip server send back 100 trying, but didn't send back 180 trying within about 10 seconds, the cisco send cancel to sip server to end the call, how can i change the cisco configuration to let wait cisco wait longer for the 180 ring back?
05-12-2007 01:48 AM
Hi, yes there are timers and retries that can be set, see below. However i'm not sure if that would fix it, check also you q.931 debugs, it is possible the disconnects comes from telco and not the gateway, 10 seconds while waiting 180 is not excessive.
sip-ua
timers ?
buffer-invite Time to buffer the INVITE while waiting for display info
connect Time to wait for confirmation a session connected
connection Connection related timers
disconnect Time to wait for confirmation a session disconnected
expires Time to wait for the expiration of an INVITE request
hold Time to wait during hold before disconnecting
info Time to wait before INFO retransmission
keepalive Options keepalive related timers
notify Time to wait before NOTIFY retransmission
prack Time to wait before starting PRACK retransmission
refer Time to wait before REFER retransmission
register Time to wait before REGISTER retransmission
rel1xx Time to wait before starting reliable 1xx retransmission
trying Time to wait for provisional response to INVITE
update Time to wait before starting UPDATE retransmission
retry ?
bye BYE retry value
cancel CANCEL retry value
info INFO retry value
invite INVITE retry value
keepalive KEEPALIVE retry value
notify NOTIFY retry value
prack PRACK retry value
refer REFER retry value
register REGISTER retry value
rel1xx Reliable 1xx response retry value
response Response Methods retry value
subscribe SUBSCRIBE retry value
update UPDATE retry value
05-14-2007 06:38 AM
I have already tried this parameters, it doesn't work.
Thanks
05-14-2007 11:15 AM
Indeed I would look a the complete Q.931 and SIP debug because it seems strange to me that the router cancels after just 10 seconds.
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