Guido Hecken wrote:
-----Ursprüngliche Nachricht-----
Von: Klaus Darilion [mailto:[EMAIL PROTECTED]
Gesendet: Dienstag, 19. September 2006 16:03
An: asterisk-users@lists.digium.com
Betreff: [asterisk-users] fast SIP failover (outgoing sIP requests) with
1.2
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
Hi,
maybe I'm wrong, but what about using the ChanisAvail function?
We did something like this in a customer installation:
exten => _XXX.,1,Set(LANGUAGE()=de)
exten => _XXX.,2,ChanisAvail(CAPI/ISDN3/${EXTEN},s)
exten => _XXX.,3,Dial(CAPI/ISDN3/${EXTEN}/b,60,tT)
exten => _XXX.,4,Congestion
exten => _XXX.,103,ChanisAvail(CAPI/ISDN2/${EXTEN},s)
exten => _XXX.,104,Dial(CAPI/ISDN2/${EXTEN}/b,60,tT)
exten => _XXX.,105,Congestion
Hope, it helps ...
Hi!
I've tried it but apparently chanisavail does not work with "non-local"
SIP peers.
thanks
klaus
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