... PBX, etc, into IP based voice network that constructed by the carrier or enterprise itself. When placed at network side connecting with PSTN ... operating system, supports SIP and MGCP. Work as IP-Centrex access terminal, AG2196 offers rich features, such as call transfer, ... ProcessingVoice codec: G.711, G.729A, G.723.1, GSM, iLBCEcho cancellation: G.168, 64ms echo tailDynamic jitter buffer, ...