The Cisco AS5800 voice feature card is a full featured voice-processing card that supports up 192 DSP-based voice ports. Voice processing capabilities include Voice Activity Detection (VAD) and silence suppression, comfort noise generation, adaptive jitter buffering, programmable 16 and 32-msec echo cancellation, programmable frame size, and Dual Tone Multiple Frequency (DTMF) detection and generation. The Cisco AS5800 Voice Feature card offers industry-leading DSP density and a wide range of VoIP coders/decoders (codecs), including G.711, G.729, G.729a, G.723.1, and Group III real-time fax support, on any port at any time.