The cheapest option call transfer one number to another by pressing a when you call in the urban network?
Thinking how to best do...
Received a phone call answer it and if necessary transferred to another handset or number.
Thought of one option, and that seems not reliable:
Use 2 dect phone and base. There you can configure the receive call on one phone and then transfer to another. But as line of sight about 300m I think it might not finish.