1-11
Installation and Upgrade Guide for Cisco Unified Videoconferencing 3522 BRI Gateway and 3527 PRI Gateway Releases 5.6 and 5.7
OL-17010-01
Chapter 1 Functionality
About Cisco Unified Videoconferencing 3500 Gateway Functionality
About Cisco Unified Videoconferencing 3500 Gateway
Functionality
•
About PRI Gateway Call Handling Capacity, page 1-11
•
About BRI Gateway Call handling Capacity, page 1-11
•
About Gateway Call Bandwidth Overhead, page 1-12
•
About Peer-to-Peer Connectivity, page 1-12
About PRI Gateway Call Handling Capacity
Table 1-3
lists the maximum call handling capacity of the PRI gateway for different types of calls.
Note
Enabling ISDN-to-IP DTMF detection in the PRI gateway for video calls reduces the number of
supported calls by half.
About BRI Gateway Call handling Capacity
Table 1-4
lists the maximum call handling capacity of the BRI gateway for four BRI lines, eight
voice-only calls, or eight video calls, or any combination of the two.
Table 1-3
PRI Gateway Call Handling Capacity
Call Type
Maximum Number of
Calls Using 1 x E1 PRI
Line
Maximum Number of
Calls Using 1 X T1 PRI
Line
voice (64 Kbps)
30
23
2B video (128 Kbps)
15
11
6B video (384 Kbps)
5
3
12B video (768 Kbps) 2
1
Table 1-4
BRI Gateway Call Handling Capacity
Number of Calls
Capacity
1
384 Kbps+ or 412 Kbps
2
256 Kbps
4
128 Kbps
8
64 Kbps
