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204 Avaya Application Solutions IP Telephony Deployment Guide
Figure 68: Inter-site TDM and Media Processing resource requirements
In Figure 68, the usages are presented on an endpoint-by-endpoint basis. For example,
according to Figure 68
, an intersite call between an IP endpoint in Site 1 and a circuit-switched
endpoint in Site 2 requires no TDM or media processing resources in Site 1, but does require
one TDM resource and one media processing resource in Site 2.
The overall TDM usage and media processing usage for each site can be calculated from an
expanded COI matrix, along with the information from Figure 67
and Figure 68. To illustrate,
Example 4: Expanded COI matrices
will be further expanded.
TDM: 0
Media: 0
I
P
C
COI
Matrix
Per-Call Inter-Site Resource Usage
(Resources required at both sites corresponding
to a particular off-diagonal cell in the COI matrix)
“I” denotes IP endpoint; “C” denotes circuit-switched endpoint
(other than PSTN trunks);
“P” denotes PSTN trunk
TDM: 1
Media: 1
TDM: 1
Media: 1