Traffic engineering
148 Avaya Application Solutions IP Telephony Deployment Guide
One of the first steps in the process is to distinguish between intercom call usage, inbound
PSTN call usage, and outbound PSTN call usage. Inbound and outbound tie trunk usage must
also be considered when working with multiple Communication Manager systems that
networked together. However, that discussion is presented in a later section.
Although Avaya systems can be used as tandem switches for PSTN traffic, that possibility is not
considered here. Traffic between two other Avaya systems in a network is the only traffic that
can be routed through Communication Manager. So, in the case of a single stand-alone system,
there is typically no tandem traffic. Therefore, because every call involves at least one station,
one must be careful to reconcile the station usage with the call usage.
For example, suppose that the total station usage is 100 Erlangs, which could hypothetically
correspond to 20 Erlangs of intercom call usage, 30 Erlangs of inbound PSTN usage, and 30
Erlangs of outbound PSTN usage:
●
Intercom station usage = 40 Erlangs (2 Avaya stations per call x 20 Erlangs of intercom
call usage)
●
Inbound station usage = 30 Erlangs (1 Avaya station per call x 30 Erlangs of inbound call
usage)
●
Outbound station usage = 30 Erlangs (1 Avaya station per call x 30 Erlangs of outbound
call usage)
The 40 Erlangs that are associated with intercom calls, plus the 30 Erlangs that are associated
with inbound calls, plus the 30 Erlangs that are associated with outbound calls total 100 Erlangs
of station usage.
Table 21: 3-site standalone community of interest (COI) matrix
CUR
To endpoints in site __
1
2
3
From
end
poi
nt
s in Sit
e
___
_ 1
Call usage generated by
Site 1 endpoints,
terminating at Site 1
endpoints
Call usage generated by
Site 1 endpoints,
terminating at Site 2
endpoints
Call usage generated by
Site 1 endpoints,
terminating at Site 3
endpoints
2
Call usage generated by
Site 2 endpoints,
terminating at Site 1
endpoints
Call usage generated by
Site 2 endpoints,
terminating at Site 2
endpoints
Call usage generated by
Site 2 endpoints,
terminating at Site 3
endpoints
3
Call usage generated by
Site 3 endpoints,
terminating at Site 1
endpoints
Call usage generated by
Site 3 endpoints,
terminating at Site 2
endpoints
Call usage generated by
Site 3 stations, terminating
at Site 3 endpoints
Содержание Application Solutions
Страница 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Страница 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Страница 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 74: ...Avaya Application Solutions platforms 74 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Страница 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 214: ...Voice quality network requirements 214 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 239: ...Reliability Issue 3 4 1 June 2005 239 Figure 69 S8700 Media Server in a high reliability configuration ...
Страница 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Страница 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 350: ...Implementing Communication Manager on a data network 350 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Страница 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...