MGU-S

 100/1000 Base-T electrical uplink interfaces
 Scaleable capacity, from 200 to 672 VoIP DSP channel
 On broad LEDs for card/link status indications

 Comply with standardized IP-based control protocols, MGCP and Megaco/H.248. Megaco/H.248 is an advanced version for

this control interface.
 Provide voice switching and conversion functionalities under the control of MGC (SoftSwitch).
 Bi-directionally convert voice formats between TDM-based PCM payload and IP-based G.711, G.723, G.726 or G.729 payload, due to the deployment demands of network operators.
 RTP/RTCP for packet-based voice payload delivery and traffic report.
 Voice echo-cancellation mechanism on voice delivery on packet side. For carrier-grade, the appropriate tail range is 128 ms, and corresponding standard is G.168. Both Voice Activation Detection (VAD) for silence suppression on send-side and Comfort Noise Generation (CNG) for local noise insertion during silence suppression period on receive-side shall be supplied for voice quality.
T.38 Fax over IP functionality.