asterisk users - Dec 2009 - REFER to trunk

I have a private trunk with a peer. A call comes in from the trunk, and 
Asterisk calls a peer agent. If the agent transfers the call (this is a 
blind transfer using REFER), I want Asterisk to send a REFER back to the 
trunk, and essentially stay out of the loop.

As set up, Asterisk initiates a new call using INVITE to the trunk and 
then bridges the original incoming and the new outgoing calls.

Is that doable at all? What should be configured on the trunk peer?

Thanks,

  -kkm

Sorry, totally forgot to mention that this is a SIP trunk.

Asterisk version is 1.6.1.6.

On 091207 1130, Kirill 'Big K' Katsnelson wrote:
> I have a private trunk with a peer. A call comes in from the trunk, and 
> Asterisk calls a peer agent. If the agent transfers the call (this is a 
> blind transfer using REFER), I want Asterisk to send a REFER back to the 
> trunk, and essentially stay out of the loop.
> 
> As set up, Asterisk initiates a new call using INVITE to the trunk and 
> then bridges the original incoming and the new outgoing calls.
> 
> Is that doable at all? What should be configured on the trunk peer?
> 
> Thanks,
> 
>   -kkm