Designed to enable wireless infrastructure developers to quickly add adaptive rate GSM-AMR or EVRC voice coders
to their existing and next-generation networks, the transcoders use T1/E1 connections or the industry standard H.110 telecomms bus to route calls.
This standard defines the connection protocol, voice coders
, and other necessary functions that make voice calls over the Internet possible.
The PhonexChange suite supports a wide variety of narrowband and wideband voice coders
, including Broadcom's high-fidelity BroadVoice(R) coder, a high quality full-duplex speakerphone algorithm, advanced jitter buffer management and packet loss concealment techniques, conferencing support, and a complete library of standard telephony algorithms required for IP phone designs.
Voice data support includes ITU G.711, G.723.1, G.729A and G.729B voice coders
, G.165 and G.168 echo cancellation, voice-activity detection, comfort-noise generation, DTMF relay, jitter buffer management and playback.