Cisco 2-Port Voice Interface Card - BRI (Terminal) - Spare VIC-2BRI-S/T-TE= 数据表
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VIC-2BRI-S/T-TE=
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Data Sheet
Cisco Catalyst 4500 Series
Access
Gateway
Module
Cisco Catalyst 4500 Access Gateway Module integrates secure WAN and voice
services into the Cisco Catalyst 4500 Series LAN switches.
Figure 1
Cisco Catalyst 4500
Series with Secure
WAN and Voice
Services
Series with Secure
WAN and Voice
Services
The Cisco
®
Catalyst
®
4500 Access
Gateway Module (AGM) enables
organizations to implement integrated IP
telephony and WAN services at campus and
integrated branch office sites. Combining
the WAN and voice infrastructure into
Cisco Catalyst 4500 Series switches gives
organizations the ability to reduce network
complexity, enhance employee productivity,
and improve network deployment times
through an integrated platform while
preparing for data, voice, and video
convergence across the enterprise.
The Cisco Catalyst 4500 AGM can be
deployed in both Cisco Catalyst 4500 Series
and Catalyst 4000 Series chassis running
either Catalyst OS or Cisco IOS
®
Software
and is fully compatible with all supervisor
engines. Multiple AGMs can be deployed in
the chassis to support higher density
requirements or provide a higher level of
availability and resiliency.
Features and Benefits
The primary features of the Cisco Catalyst
4500 AGM include telephony and WAN
routing.
Telephony Features
• Survivable Remote Site Telephony
(SRST)—The Cisco CallManager can
be used for centralized control of the
Cisco Catalyst 4500 AGM at campus
and branch sites. The AGM supports
both MGCP and H.323v2 interfaces
to the Cisco CallManager. SRST enables
a resilient IP telephony service when
connectivity to the Cisco CallManager
is lost. The AGM provides SRST for up
to 240 IP phones.
• Audio-conferencing—The digital
signal processor (DSP) farm on the
Cisco Catalyst 4500 AGM can be
used to support on-demand and
dedicated, reservation-less
audio-conferencing services for local
and remote users. Audio transcoding
between G.729 and G.711 enables
efficient communications between
callers using different codecs (for
example, campus phones using G.711
and remote site phones using G.729).