... billing interface for CDRAdvanced technologies including SIP protocol, Frequency domain echo cancellation and iLBC codec;Compatible with asterisk,3CX,Yate based ... MIPS processing power, for full load voice processing to support CODEC (G.711, G.729A, G.723,iLBC,GSM), echo ... 24 Channels), 2T1 (48 Channels), 4T1 (96 Channels)· Voice ProcessingVoice Codec: G.711, G.729A, G.723.1, GSM, iLBCEcho Cancellation ...