[asterisk-users] Asterisk call forward for T1 incoming calls

[Daniel Taylor]

On 04/28/2014 01:37 PM, Don Kelly wrote:
> On Fri, Apr 25, 2014 at 9:19 AM, Al lists <asteriskal at gmail.com> wrote:
>> Is there a way to divert incoming calls on DAHDI T1 channels so telco
>> gets the diversion and send the call to new number and releasing the
> channel?
>
> Rusty Newton:
> I'm no PRI expert, but I do remember from my time working with the T1
> interface cards that two B-channel transfers did something like this.
>
> Digium has documentation on that here:
> http://kb.digium.com/articles/Configuration/Two-B-Channel-Transfers
>
> If that doesn't help, and you have a Digium card; you might call Digium tech
> support to ask about it.
>
> Don Kelly adds:
> TBCT doesn't actually "divert," but it will "transfer" a call. The
> difference, which may not matter to you, is that one of the channels must be
> answered by Asterisk (unless something has changed).
>
> A call comes in, you decide you want to "divert" it--you place an outbound
> call on another channel. You must either answer the incoming call or wait
> for the outgoing call to answer before completing the TBCT.
>
> Another quirk to be aware of: You may wish to present the caller's number to
> the called party as "caller ID." Some carriers will not permit this.
>
> Also, the op referred to T1 channels. TBCT works on PRI, not "simple" T1.
>
>    --Don
>
>
>
> Additionally, most providers charge for TBCT provisioning, so you would want to make certain that it is the correct way to get the functionality you are after.

-- 
Daniel Taylor          VP Operations            Vocal Laboratories, Inc.
dtaylor at vocalabs.com   http://www.vocalabs.com/            (612)235-5711