[asterisk-users] Connect Asterisk PBX to Traditional PBX and retain functionality

[Daniel Hazelbaker]

If I understand you, then yes you can.  I do this now.  All our telco  
lines come through our analog NEC phone switch and then through FXO/ 
FXS ports to my Asterisk. Asterisk handles voicemail and the menu  
system so when somebody dials "6" to get my extension the asterisk  
does the following:

Flash();
Wait(0.4);
SendDTMF(268);
Hangup();

I added the Wait(0.4) as I found that under heavy load the NEC would  
not catch the first DTMF digit after the Flash.  This solution has  
worked for us for over a year now.

Some "bonus" information that may or may not be relevant to what you  
are doing:

We have a few SIP phones that we needed to be able to do the same kind  
of thing.  We couldn't flash transfer to the Asterisk, but in the NEC  
I setup a outgoing trunk line (dial 8 to access) that goes to the  
Asterisk box.  Then I setup a "forward all calls" on extension 268  
(when I have my SIP phone active) to "dial out" to 8268.  That way  
when somebody calls my extension it automatically forwards then to  
extension 268 on the Asterisk box.

Daniel


On Jul 23, 2008, at 3:57 PM, Ricardo Melendez wrote:

> Hi to All, I have a PBX  (MAINPBX) from a Telecomm Provider, which  
> have the feature to transfer calls (Incoming call -> Answer -> FLASH  
> -> Dial Number to transfer -> Answer -> FLASH+4) and the call is  
> transferred, but I have the need to implement an internal ACD using  
> Asterisk as the PBX, the trunks connected to my Asterisk FXO ports  
> are Extensions of my MAINPBX (ex., 5437, 5440 etc), all features  
> work fine, but I have the need to make asterisk act as a normal  
> telephone when transferring calls, I need to release the line (FXO  
> port in my Asterisk) and make the transfer via the MAINPBX feature.
> Otherwise I will use 2 lines of my Asterisk PBX to make the transfer  
> and it reduce the incoming lines available for my ACD.
>
> It’s possible send the commands FLASH, FLASH+4 using the incoming  
> line to my MAINPBX via Asterisk like a normal telephone?
>
> Thanks in Advance.
>
> Ricardo Melendez
>
>
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