[asterisk-users] Zap Call deflection on PRI

[Jared Smith]

On Wed, 2008-02-27 at 08:50 -0500, Steve Totaro wrote:
> I recall that this is now part of Asterisk (1.4 or 1.6 or both).  It
> really is a great feature rather than using two channels in "trunk to
> trunk" transfer.

This is often called a "Two B-Channel Transfer", or TBCT.  As long as
your PRI provider has this service enabled on your PRI, recent versions
of libpri, zaptel, and Asterisk will support this.  Obviously it won't
work if your PRI provider hasn't enabled TBCT on your PRI.

On the Asterisk side of things, you need to make sure you have
"facilityenable=yes" and "transfer=yes" in zapata.conf for the bearer
channels of your PRI.

-- 
Jared Smith
Community Relations Manager
Digium, Inc.