Hi,

I have an issue with re-invites on some calls. I'm using 1.6.15 and these calls are using bypass media. I have Kamailio as inbound SBC but FS connecting directly to my provider for B leg.

After 5 minutes plus on some calls my provider sends re-invite on A leg
FS then sends this re-invite to the B leg
At the same time the B leg sends a Re-invite
FS replys 491
B leg provider replys 100, then 500 (with retry in the 500)
FS send ACK and then BYE

Not sure what setting I need to change or can change infact to either retry the invite in accordance with the 500 retry request. Or something else to stop the call ending...

Thanks