Traffic engineering
Table 25:
CUR To endpoints in site __
From endpoints in Site ____
| 1 | 2 | 3 |
|
|
|
|
1 | Call usage generated by | Call usage generated by | Call usage generated by |
| Site 1 endpoints, | Site 1 endpoints, | Site 1 endpoints, |
| terminating at Site 1 | terminating at Site 2 | terminating at Site 3 |
| endpoints | endpoints | endpoints |
2 | Call usage generated by | Call usage generated by | Call usage generated by |
| Site 2 endpoints, | Site 2 endpoints, | Site 2 endpoints, |
| terminating at Site 1 | terminating at Site 2 | terminating at Site 3 |
| endpoints | endpoints | endpoints |
3 | Call usage generated by | Call usage generated by | Call usage generated by |
| Site 3 endpoints, | Site 3 endpoints, | Site 3 stations, terminating |
| terminating at Site 1 | terminating at Site 2 | at Site 3 endpoints |
| endpoints | endpoints |
|
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
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.
