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| Call usage rates | |
Table 30: Endpoints in a |
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Endpoints | Atlanta | Boston | Cleveland | |
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IP stations | 1107 | 450 | 270 |
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| (1080 IP | (450 IP | (270 IP | |
| Telephones + 27 | Telephones) | Telephones) | |
| Road Warriors) |
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648 | 198 | 36 |
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stations | (540 DCP stations | (180 DCP stations | (36 analog stations) | |
| + 108 analog | + 18 analog |
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| stations) | stations) |
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PSTN trunks | 120 (DS0) PSTN | 48 (DS0) PSTN | 24 (DS0) PSTN | |
| Trunks | Trunks | Trunks | |
| (5 T1 facilities) | (2 T1 facilities) | (1 T1 facility) | |
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First consider the 32 Erlangs of intercom CUR between Site 1 stations (Table 28). Site 1 (Atlanta) has a total of 1755 stations, 1107 of which are IP stations, and 648 of which are
Also, 37% of Site 1 intercom calls are generated by
So, since 39.7% of Site 1 intercom calls are IP station to IP station, IP station to IP station call usage is 39.7% of the 32 Erlangs of overall Site 1 intercom CUR, or 12.7 Erlangs. Similarly, both the Site 1 IP station to
A similar process is used to break down the 12 Erlangs of intercom CUR into its components. There are a total of 648 stations in Site 2 (Atlanta), 450 of which are IP stations, and 198 of which are
Issue 6 January 2008 193