Call usage rates
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In general, one may choose to expand a COI matrix in any of several different possible ways,
depending upon the needs of the problem. In the preceding example, separating the endpoints
into IP, circuit-switched, and PSTN makes sense for the upcoming resource-sizing calculations,
as will be seen later in this document. In other examples, other sets of categories may be more
appropriate. Also, the number of categories per site is not limited to three.
COIs for multiple-site networks
The discussion of COIs up to this point has been limited to stand-alone Communication
Manager systems. It is also possible to network several Communication Manager systems
together. IP tie trunks serve as the most common mode of interconnectivity. However,
circuit-switched tie trunks are also supported.
To engineer a network of multiple Communication Manager systems, one must to know the
topology of sites within each of the individual systems, and the overall topology of the entire
configuration. Consider the network of systems that
Figure 55: Network of Avaya systems and
system sites
shows.
Figure 55: Network of Avaya systems and system sites
Figure 55: Network of Avaya systems and system sites
shows three distinct Communication
Manager systems, that are interconnected by IP trunk groups. This network has a total of seven
sites, which are labeled “S1” through “S7” in the figure. Systems 1 and 2 each have two sites,
and System 3 has three sites.
Summary of Contents for Application Solutions
Page 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Page 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Page 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Page 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Page 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Page 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...