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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