I have three external phone numbers (connected through SIP accounts). If a call is comming from external, I want to see that number (DID) on my dect phone.
Also, if I call from my dect phone to the outside, I want to choose a CID (or one of my DIDs).
The dect phone is connected through a SPA-3000 to a new freepbx server.
How can I do this?