Jacek Konieczny wrote:
On 2016-08-09 10:06, Faheem Muhammad wrote:
trip time and Call Setup time of SIP Requests.
In case of GSM Network with high delay you need to set the T1 timer a
higher value like 1000ms (500 ms default). Similarly you can reduce the
Call setup time by configuring 'T2' upto you choice as per you telephony
network. Configure t1min, timert1 and timerb according to your network.

No, that won't work.

First – 't1min', 'timert1' and 'timerb' are chan_sip, not pjsip options.

Second – the 'timer_t1' and 'timer_b' settings available in 'pjsip.conf'
are global and not per-endpoint. I cannot change T1 for trunks, as they
might not be fast enough to respond and I cannot set it for phones only.

It seems I need to bring back the chan_sip behaviour – 'do not bother
with INVITE to Unreachable devices'.

I'd suggest filing an issue on the issue tracker[1] for this. It's reasonable behavior.

[1] https://issues.asterisk.org/jira

--
Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org


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