Avaya 555-245-600 Example 4 Expanded COI matrices, From endpoints in Site To endpoints in Site

Traffic engineering

Consider the COI matrix for a three-site, stand-alone Communication Manager system, as presented in Table 25. A suitable expansion of that matrix might take the form of the matrix in Table 29: Expanded COI matrix for a three-site system on page 192 in which

●I represents IP endpoints

●C represents circuit-switched endpoints

●P represents PSTN trunks

This finer categorization of endpoints permits the use of a single COI matrix for intercom, inbound, and outbound call usage rates.

Table 29: Expanded COI matrix for a three-site system

From endpoints in Site ___

To endpoints in Site ___

	1			2			3
I	C	P	I	C	P	I	C	P

I

1 C

P

I

2 C

P

I

3C P

Example 4: Expanded COI matrices

In this example, we revisit Example 2: Uniform Distribution model, which pertains to the Uniform Distribution model, in more detail. The various endpoints are grouped into the three categories that are referenced in Table 29. The COI matrix in Table 28 lists the intercom call usage rates between each pair of sites, including intrasite call usage. Those usage rates can be broken down into finer components. Table 30: Endpoints in a three-site system on page 193 reviews the various endpoints in each site.

192 Avaya Application Solutions IP Telephony Deployment Guide