I am setting up a new VitalPBX server and I am trying to understand the best way to select the outbound CID from the actual phone. This will probably be using Yealink T54w.
Basically there is a need to select the outbound CID to match one of several DIDs that I have. Each number has it's own context and purpose.
It seems like one way to do this is create an extension for each outbound CID needed. Then I would setup the phone to register multiple extensions with the PBX. The user can then select the extension they need based on CID.
Another way I think would work is dial a prefix before the outgoing number and then create outbound routes to match it and set the CID. This is not as easy to use or very friendly, as the user has to remember the prefix and dial it before each number.
I was wondering if there is a middle ground where you can set up the phone with one extension and then setup buttons on the phone to select a "line". What this would do is dial the prefix for you. I don't think this is possible.
My thinking here is that it would keep things simpler if a person only has to think about one extension for inter-office calling but can still set the outbound CID as needed.