Cisco 3521 Administrator's Manual page 29

Chapter 1 Overview of the Cisco IPVC 3500 Series Gateway
Table 1-7
Feature
Peer-to-peer connectivity
IP network connections
Table 1-8
Table 1-8
Feature
Supported ports
Supported video
conferencing
protocols
Supported audio
codecs
Audio Transcoding
(optional for the
Cisco
IPVC 3540 PRI
Gateway)
Supported video
protocols
Supported video
resolutions
Administrator's Guide for Cisco IPVC 3521 BRI Gateway, Cisco IPVC 3526 PRI Gateway, and Cisco IPVC 3540 PRI Gateway
OL-7995-01
Cisco IPVC 3500 Series Gateway Feature Summary
lists features for specific Cisco IPVC 3500 Series Gateways.
Cisco IPVC 3500 Series Gateway Feature Specifics
Cisco IPVC 3540 PRI
Gateway
2 PRI ISDN port
H.320, H.323 (using Stack v4.0)
The term audio transcoded video calls refers to the process whereby an audio
stream in a multimedia call can be transcoded from one codec type to another.
Basic and advanced audio coding supported codecs are: G.711, G.722,
G.722.1, G.723.1, G.728
G.711 (ISDN) < > G.723.1
(IP) for up to 30 voice
channels.
G.711 (IP) < > G.728 (ISDN) for up to 20 audio
transcoded video channels.
The gateway automatically performs A-Law
G.711-to-µ-Law G.711 translation between the IP and
ISDN sides if needed.
NOTE: When your unit includes both a gateway and
Cisco IPVC 35xx MCU, G.728 transcoding is supported
on the Cisco IPVC 35xx MCU only.
H.261, H.263, H.263+ (Annexes F, J and N), H.263++ (Annex W), H.264.
VGA, XGA, SVGA, SIF, 4SIF, CIF, QCIF, 4CIF, 16CIF.
About Cisco IPVC 3500 Series Gateway Features
Description
The Cisco IPVC 3500 Series Gateway supports
connectivity to the IP network through a
gatekeeper, or directly to a peer device such as
Cisco CallManager.
The Cisco IPVC 3500 Series Gateway has one
10/100Base-T Ethernet IP port (on the front
panel) and connects to an IP segment through a
direct connection to a network switch. The
Ethernet ports on the rear panel are for future use.
Cisco IPVC 3526 PRI
Gateway
1 PRI ISDN ports
G.711 (ISDN) < >
G.723.1 (IP) for up to 60
voice channels.
Cisco IPVC 3521 BRI
Gateway
4 BRI ISDN ports
G.711 (ISDN) < >
G.723.1 (IP) for up
to 8 voice channels.
G.711 (IP) < >
G.728 (ISDN) for
up to 8 audio
transcoded video
channels.
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