CDR - Call Detail Record
CLEC - Competitive Local Exchange Carrier
FXO - Foreign Exchange Office
FXS - Foreign Exchange Station
PBX - Public Branch Exchange
Trunk - A Channel between two nodes or switching centers
COIP - Communication Over Internet Protocol
VOIP - Voice Over Internet ProtocolCodecsulaw - The version of G.711 which is used in the US an Japan. Does not use any compression so has the best quality.
