8.3.4 Virtual VoIP Gateway Card Specifications
For details about the RFCs and protocols for the V-IPGW card, refer to the following specifications.
ITU-T H.323
H.225.0
H.245
Codecs G.711 (a-law and µ-law)
G.729A
Voice Operations Echo Cancellation
(48 ms)
Jitter Buffer (200 ms)
VAD (Voice Activity Detection)
*1
PLC (Packet Loss Concealment)
DTMF Relay Inband/Outband (RFC2833)/Outband (H.245)
Fax Relay G.711 Inband/T.38
Protocol/Function RTP
RTCP
*1
VAD is only available for codec G.711.
Installation Manual 321
8.3.4 Virtual VoIP Gateway Card Specifications