Hello,
My SIP trunk provider supplies two SBCs for authenticating my trunks, using SRV records that look like this (i change the real domain) :
_sip._tcp.sbc 3600 SRV 300 1 5060 sbc1.ext.myprovider.net.
_sip._tcp.sbc 3600 SRV 400 1 5060 sbc2.ext.myprovider.net.
_sip._udp.sbc 3600 SRV 100 1 5060 sbc1.ext.myprovider.net.
_sip._udp.sbc 3600 SRV 200 1 5060 sbc2.ext.myprovider.net.
The goal is to allow failover to the backup SBC if the primary one goes down. The trunk management via SRV records works as expected, except when the primary SBC comes back online after an outage. In this case, inbound calls work, but outbound calls do not.
After analysis, my provider indicated that the issue occurs because the PBX is authenticated on the backup SBC but decides to route SIP traffic through the primary SBC, where it is not identified.
I have tried various configurations by setting the "Register Proxy" and "Outbound Proxy" fields in addition to the "Proxy" field, but I still encounter the same problem.
Am I missing something in my configuration to ensure the PBX re-registers the trunk on the main SBC when it attempts to route outbound call traffic through it, even though it is currently identified on the backup SBC?
My SIP trunk provider supplies two SBCs for authenticating my trunks, using SRV records that look like this (i change the real domain) :
_sip._tcp.sbc 3600 SRV 300 1 5060 sbc1.ext.myprovider.net.
_sip._tcp.sbc 3600 SRV 400 1 5060 sbc2.ext.myprovider.net.
_sip._udp.sbc 3600 SRV 100 1 5060 sbc1.ext.myprovider.net.
_sip._udp.sbc 3600 SRV 200 1 5060 sbc2.ext.myprovider.net.
The goal is to allow failover to the backup SBC if the primary one goes down. The trunk management via SRV records works as expected, except when the primary SBC comes back online after an outage. In this case, inbound calls work, but outbound calls do not.
After analysis, my provider indicated that the issue occurs because the PBX is authenticated on the backup SBC but decides to route SIP traffic through the primary SBC, where it is not identified.
I have tried various configurations by setting the "Register Proxy" and "Outbound Proxy" fields in addition to the "Proxy" field, but I still encounter the same problem.
Am I missing something in my configuration to ensure the PBX re-registers the trunk on the main SBC when it attempts to route outbound call traffic through it, even though it is currently identified on the backup SBC?