Adjusting the rerouting timer when using next_hop

[denyspozniak]

Hello!

We are using the next_hop parameter in the sbcprofile settings to reroute outgoing calls in case of failure on the primary destination.
Something like below:

next_hop=PEER_1/UDP,PEER_2/UDP
patch_ruri_next_hop=yes
next_hop_for_replies=yes
next_hop_1st_req=no

In the trace, you can see that the jump to the next peer occurs after 8 seconds.
How can we adjust this timer?

PS. Tried many variants from the sip_timers.h file, but no luck.
https://github.com/sems-server/sems/blob/master/core/sip/sip_timers.h

[juha-h]

Best match might be STIMER_E. Are you using UDP to connect to the peers? If so, try with TCP or TLS. Then if connection setup fails there is no need wait for 1xx response.

[denyspozniak]

Hello!
sip_timer_E=5000 did not help either.
Unfortunately, we cannot change the transport so easily.

[juha-h]

Denys writes:

`sip_timer_E=5000` did not help either. Unfortunately, we cannot change the transport so easily.

See https://tools.ietf.org/html/rfc3261#section-17.1.1. Try to find where sems keeps timer B.

[rhusnain114]

this might work:

sip_timer_M=3000
sip_timer_E=3000
sip_timer_B=10000
sip_timer_C=32000
sip_timer_t2=5000