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Cisco AS5800 Universal Access Server Dial Shelf Card Guide
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Chapter5 Cisco AS5800 Voice-over-IP Card
Software Features
Software Features
High-complexity VoIP cards can handle two VoIP sessions per DSP. A Cisco AS5800 configured as a
voice gateway and equipped with high-complexity CT1/CE1 trunk cards supports the following software
features, codecs, and protocols:
• H.323 call signaling (versions 1, 2, and 3)
• H.323 gatekeeper support
• The following codecs:
–
g711alaw G.711 A-Law 64,000 bps
–
g711ulaw G.711 u-Law 64,000 bps
–
g723r53 G.723.1 5,300 bps
–
g723r63 G.723.1 6,300 bps
–
g726r16 G.726 16,000 bps
–
g726r24 G.726 24,000 bps
–
g726r32 G.726 32,000 bps
–
g728 G.728 16,000 bps
–
g729abr8 G.729 ANNEX-A and B 8,000 bps
–
g729ar8 G.729 ANNEX-A 8,000 bps
–
g729r8 G.729 8,000 bps
• Voice activity detection (VAD)
• Echo cancellation (128 ms)
• Interactive voice response (IVR) and authentication, authorization, and accounting (AAA) for
two-stage dialing
• T1/E1 PRI signaling and T1 CAS signaling
Medium-complexity VoIP cards can handle four VoIP sessions per DSP, but support fewer codecs. The
medium-complexity CT1/CE1 trunk card supports the following software features, codecs, and
protocols:
• H.323 call signaling
• H.323 gatekeeper support
• The following codecs:
–
g711alaw G.711 A Law 64,000 bps
–
g711ulaw G.711 u Law 64,000 bps
–
g726r16 G.726 16,000 bps
–
g726r24 G.726 24,000 bps
–
g726r32 G.726 32,000 bps
–
g729abr8 G.729 ANNEX-A and B 8,000 bps
–
g729ar8 G.729 ANNEX-A 8,000 bps
–
g729r8 G.729 8,000 bps
• Voice activity detection (VAD)