Hi!
I have the following problem: I route calls from one office to the other
office via SIP, but if for any reason this SIP call fails, I want a
backup route via the PSTN.
Thus, I use:
exten => _[1-9].,4,Dial(SIP/${enumresult},90)
exten => _[1-9].,5,GotoIf($["${DIALSTATUS}" = "CHANUNAVAIL"]?103:6)
exten => _[1-9].,6,GotoIf($["${DIALSTATUS}" = "CONGESTION"]?103:7)
exten => _[1-9].,7,Hangup
exten => _[1-9].,103,Dial(ZAP/g1/${EXTEN},90)
The problem is, if the SIP server at the remote office is down, thus no
responses to the INVITE, it takes 64 seconds to timeout.
Is there a method to shorten this interval - e.g. if there is no
response within 10 seconds give up - without changing the hardcoded
retransmission value (6) in chan_sip ?
regards
klaus
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