Version; Voip Features - Draytek Vigor VigorAccess IVD User Manual

Version: 1.5

3.7 VoIP Features

VoIP Telephony
It is based on MGCP/SGCP, SIP call signaling.
IVD supports codec with G.711, G.729a, G.726 and G.723.
IVD supports On-net to On-net, On-net to Off-net, Off-net to On-net and Off-net to Off-net call.
IVD supports VAD (silience suppression).
IVD supports echo cancellation (G.168)(16ms echo tail length)
IVD supports 24 FXS lines.
IVD supports VoIP features as below -
MGCP, SIP protocols.
Codec G.711, G.729A, G.723.1, G.726.
VAD(Silence Suppression) & CNG.
G.168-2000 Echo Canceller, Jitter Buffer.
Packet Loss Concealment.
Out of Band DTMF(RFC2833).
Modem Support Rate Up V.92. (for G.711 only)
QoS for Bandwidth Reservation.
Hunt Group.
Outbound Proxy.
Call Forwarding.
Call Holding.
T.38 Fax Rely.
NAT Traversal. (STUN)
Incoming Call Barring.
FXO Incoming/Outgoing Preset Number.
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