E1 Trunk Media Gateway (GN-MG800)

Signaling support
SS7 SS7(ITU-T Q. 700 series)
ISDN-PRI(ITU-T Q. 931, Q. 921)
V5.2(ITU-T G. 964, G. 965)

VoIP protocol support
SIP(RFC3261, RFC3362(T. 38), RFC2833(DTMF))
Codec: G. 711µ -Law and A-Law, G. 711 Appendix 1G. 723.1 and G. 723.1 Annex A, G. 729 Annex A and Annex BG. 726

Echo Cancellation: G. 168 128 ms Network Echo Canceller
FAX Support T38 and pass through

Generic Voice Activity Detection (VAD)
Generic Comfort Noise Generation (CNG)

Calling control: Called/Calling party number translation; Second stage dialing, Autodialing with DTMF, Ring Back tone.
Capacity
A 1U equipment can have 2 independent VoIP module
Each Module contains:
1~4 E1
128 G. 711 Channels
64 Complex Voice Codec Channels
32 T. 38 Fax Channels

Physical Specification
Item Specification
Input voltage -48v DC or 200 240V AC
Power 30 w
Dimension widthdepthheight 480mm 290mm 40mm (1U)
Weight 3 kg
Environment Temperature 050
Rel Humidity Less than 80