G.711 audio codec
Yes
G.723.1 (5.3 and 6.4kbps) audio codec
Yes
G.729, G.729A audio codec
Yes
G.711 frame length
10 to 90msec
G.723.1 frame length
30 to 90msec
G.729, G.729A frame length
10 to 90msec
Silence Suppression (VAD)
Yes
Echo Canceler G.168-2002
Yes
QoS (Tos and Diffserv)
Yes
Integrated H.323 gatekeeper
Yes
Integrated SIP registrar
Yes
Integrated xSIP registrar
Yes
H.323 endpoints, which can register
512
SIP user agents, which can register
512
xSIP users, which can register
numerous (with licensing)
VoIP-TDM gateway channels
Yes (with licensing)
Programmable ports / sockets
Yes
MD5 authentication
Yes
H.235 Baseline Security Profile
Yes
H.235 Baseline Security Profile with integrity Yes
Digest authentication
Yes
Audio (voice) encryption
AES-256
Softswitch capability
Yes
IP to TDM gateway capability
Yes
TDM to IP gateway capability
Yes
H.450 supplementary services
Yes
SIP supplementary services
Yes
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