I don't think this is possible but it's worth a question:
I have some users who are posted to country A and country B for several months at a time. Country A has their own Callmanager that is completely separate from Country B's Callmanager.
People are assigned a number in Country A and also a number in Country B.
Country A and Country B has a private WAN link.
Is it possible to have a softphone register to 2 completely separate Callmanagers?
I know you can do trunking, etc but this is not in place at the moment and not planned until next year (political issues) that's why i want to know if it'll work.