Hi everyone,

I'm trying to do attended transfers on my FS 1.5.14 box and have the endpoints receive UPDATE requests indicating that the identity of the other leg has changed. I installed the v1.5.14 tag from source and uncommented the following line of sip_profiles/internal.xml:

<param name="NDLB-force-rport" value="true"/>

Other than the above line, my configuration is completely vanilla.

I have three extensions registered: 1000, 1007, 1006. My scenario is:

1000 calls 1007
1000 calls 1006
1000 attended transfers 1007 to 1006

Here is my fs_cli with the following debugging options:

sofia global siptrace on
sofia loglevel all 9
sofia tracelevel alert
console loglevel debug
fsctl debug_level 10

https://gist.github.com/joseph-onsip/de90a66afdf37994c334

After receiving the REFER, FS sends an UPDATE to the refer target, but not to the referee. Is there a configuration option I can set in order to have an UPDATE sent to the referee as well?

Thanks,

Joseph