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Octel Unified Messenger Concepts & Planning Guide
B-2 101-1620-005
Calculating busy hour traffic
Table B-1 through Table B-4 show the maximum amount of busy hour
traffic supported by a given number of ports for each grade of service.
Note: Erlangs, CCS, and minutes are three different measures of
traffic. 60 minutes = 1 Erlang = 36 CCS.
Table B-1. Maximum busy hour traffic supported for a GOS of P.01
Ports Erlangs CCS Minutes
40.863151.7
8 3.11 112 186.7
12 5.86 211 351.7
16 8.86 319 531.7
20 12.03 433 721.7
24 15.28 550 916.7
28 18.64 671 1118.3
32 22.03 793 1321.7
36 25.50 918 1530.0
40 29.00 1044 1740.0
44 32.53 1171 1951.7
48 36.08 1299 2165.0
52 39.69 1429 2381.7
56 43.31 1559 2598.3
60 46.94 1690 2816.7
64 50.58 1821 3035.0
68 54.25 1953 3255.0
72 57.94 2086 3476.7