Queues Applied to Telecoms

Appendix 2Erlang-C Table

Offered traffic A relative to the number of resources N and the probability of waiting D (%).

N/D	0.01%	0.05%	0.1%	0.5%	1.0%	2%	5%	10%	15%	20%	30%	40%
1	0.000	0.000	0.001	0.005	0.010	0.020	0.050	0.100	0.150	0.200	0.300	0.400
2	0.014	0.031	0.045	0.102	0.146	0.210	0.342	0.500	0.627	0.740	0.939	1.117
3	0.086	0.149	0.189	0.333	0.429	0.554	0.787	1.040	1.231	1.393	1.667	1.903
4	0.231	0.353	0.425	0.664	0.810	0.993	1.319	1.653	1.899	2.102	2.440	2.725
5	0.442	0.628	0.734	1.065	1.259	1.497	1.905	2.313	2.607	2.847	3.241	3.569
6	0.711	0.961	1.099	1.519	1.758	2.047	2.532	3.007	3.344	3.617	4.062	4.428
7	1.026	1.341	1.510	2.014	2.297	2.633	3.188	3.725	4.103	4.406	4.897	5.298
8	1.382	1.758	1.958	2.543	2.866	3.246	3.869	4.463	4.878	5.210	5.744	6.178
9	1.771	2.208	2.436	3.100	3.460	3.883	4.569	5.218	5.668	6.027	6.600	7.065
10	2.189	2.685	2.942	3.679	4.077	4.540	5.285	5.986	6.469	6.853	7.465	7.959
11	2.634	3.186	3.470	4.279	4.712	5.213	6.015	6.765	7.280	7.688	8.336	8.857
12	3.100	3.708	4.018	4.896	5.363	5.901	6.758	7.554	8.099	8.530	9.212	9.761
13	3.587	4.248	4.584	5.529	6.028	6.602	7.511	8.352	8.926	9.379	10.09	10.67
14	4.092	4.805	5.166	6.175	6.705	7.313	8.273	9.158	9.760	10.23	10.98	11.58
15	4.614	5.377	5.762	6.833	7.394	8.035	9.044	9.970	10.60	11.09	11.87	12.49
16	5.150	5.962	6.371	7.502	8.093	8.766	9.822	10.79	11.44	11.96	12.77	13.41
17	5.699	6.560	6.991	8.182	8.801	9.505	10.61	11.61	12.29	12.83	13.66	14.33
18	6.261	7.169	7.622 ...