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Features 73
• Full-duplex voice, ‘barge-in’
• Voice activity detection
• Silence detection
• Human talker detection
• Fax signal detection
• G.168 echo cancellation, up to 128 ms tail length
• Recording automatic gain control (AGC)
•Pitch control
• Audio tap
Voice over IP support
• G.711 voice codec (64 kbps, µ-law, A-law)
• G.726 voice codec (32 kbps)
• GSM voice codec (13 kbps)
• G.168 echo cancellation, up to 128 ms tail length
• Adaptive jitter buffer
• Voice activity detection (VAD)
• Comfort noise generation (CNG)
• Real time protocol (RTP framing)
• Impedance calibration
Switching and Conferencing features
• On-board switching and conferencing
• Automatic gain control (AGC)
Fax features
• Support for fax class 1 and 2
• Support for fax group 3, T.30
• V.17, V.29, V.27ter, V.21, V.34 modulation
• Up to 33.600 bps with each channel (send and receive)
• Fax compression MH, MR, MMR
• Error Correction Mode (ECM)