[Freeswitch-users] Freeswitch hangs up after 30 s when using Record-Route

Iñaki Baz Castillo ibc at aliax.net
Mon Nov 24 01:52:02 PST 2008

El Lunes, 24 de Noviembre de 2008, Woody Dickson escribió:
> I am using Openser as the sip proxy in front of freeswitch.   When using
> Record-Route, Freeswitch hangs of every call after 30 s.
> is the public ip of openser and is
> freeswitch's external profile port.  Both openser and freeswitch are within
> the same box. 

This occurs because FreeSwitch is not receiving the ACK after replying 200 OK 
(as you can see in your SIP trace).
If a UAS replies 200 Ok it expects to receive ACK during the following 32 
seconds, if not, it must understand that there has been a problem and sends a 

I see an strange network topology in your SIP trace:

FS replies 200 from to What is this 
public IP?

Anyway, the problem is that the ACK doesn't arrive to FS, so revise it.

PD: I've OpenSIPS in front of FS and of course FS works well when receiving an 
INVITE with Record-Route (of course, because in my case FS also receives the 

Iñaki Baz Castillo

More information about the FreeSWITCH-users mailing list