fix: use B2BUA-server User-Agent header value instead of custom header to route requests to B2BUA-server
(cherry picked from commit 513cae1b)
Closes FLEXISIP-370
fix: use B2BUA-server User-Agent header value instead of custom header to route requests to B2BUA-server
(cherry picked from commit 513cae1b)
Closes FLEXISIP-370