[asterisk-users] transfers from an E1 using 2b-channel or similar anyone? (QSIG?)

[Matthew Fredrickson]

On Jul 25, 2006, at 12:53 PM, Manrique Feoli wrote:

> Hi all,
> Here is the situation:
>
> A call comes in to an Alcatel PBX and it sends it to an E1 on * ,   
> this * either sends the call to a VoIP extension or needs to forward 
> it to an extension back on the Alcatel,  but WITHOUT using another 
> slot of the E1  (no tromboning or hairpinning).
>
> I've read you can do this with 2b channel transfers implemented on 
> 5ESS,     and also on QSIG.
> I know Matthew Fredrickson did it on *  (I think he programmed it for 
> *)
>
> I also know there is quite a bit of people pursuing this same goal,   
> which is way important to lower the income barriers for * to enter the 
> legacy world.
>
> Has anyone actually done it?     I appreciate any input whatsoever,  
> and if possible a sample of how to manage it on *.    What to put on 
> the extensions.conf to perform the transfer and any other files 
> needed,
>

Unfortunately, I have not implemented the Q.SIG version of 2b channel 
transfer, so for the time being you'll have to stick to hairpinning the 
legs of the call.  The Q.SIG version is a little bit more complicated 
than some of the other versions.

Matthew Fredrickson