i’m trying to connect 2 servers using IAX trunk, but here what i’m thinking to do but please let me know if i’m wrong.
Sip phone (G.711) -> *(IAX2)(G.729) -> Internet ->(G.729) *(IAX2) ->(G.711)-> Sip phone .
actually i’m trying to use G.729 to save bandwidth but inside the office i’ll use G.711. the question now is that gonna work? do i need license since i want a voice mail beteen local and remote extension?