I need some help with a special VoIP Project.
The current state is pretty simple and straight forward.
Just a PBX with 4 extensions, and a trunk. All works well.
This is shown in the diagram as 'Before'.
One SIP phone however is very special.
It doesn't have a transfer button. So no call transfer can be initiated on the phone.
It should be possible however to initiate a transfer via DTMF tones.
The current PBX (main PBX) doesn't support tranfser via DTMF.
This is the tricky part: I *think* we need to put asterisk in between the main PBX and the phone.
I *think* Asterisk should be able to listen for DTMF tones and initiate a transfer to the main PBX if the correct DTMF sequence is entered on the phone.
I need someone who can tell me if this scenario will work, or suggest another solution.
Also i would like to hire this person to help me implement it.
Link to diagram: [login to view URL]