IPO 8.1 sip to Flowroute carrier and twinning issue

[StreamlineNet]

I am having an issue with a customer using twinning through flowroute. Everything works except when people call his number directly, the call setup is done, you get the ring and the offhook is completed, it just never passes the bearer with the codec and voice traffic.

If you transfer a call to his extension the call works completely (Blind and assited transfer).

Any help on something i may have missed would be apreciated.

Thanks,
Jason

 

[DavidCT]

There was a bug in earlier versions of IP Office firmware with this exact problem -- it's not related specifically to Flowroute.

What IP Office do you have, and what version firmware?

 

[StreamlineNet]

I am running IPO 500 V1 with Version 8.1 FP1

 

[tlpeter]

Play with the refer option.
This have helped me before.

BAZINGA!

I'm not insane, my mother had me tested!

 

[DavidCT]

Are you behind a firewall? If so, make and model?

 

[StreamlineNet]

Worked with every veriation of refer section. Stll not working
Recap: it works on transfer,but does not work on direct extension.

No firewall using LAN2 for the SIP Trunk access.