You can use this table to estimate the bandwidth required to support a given number of lines (voice paths) accross your broadband connection or for reverse calculations you can view how many lines your current bandwidth can support. Two compression algorithms are assumed (Codecs). For example, if you require 5 lines @ G.729a compression, you would need a minimum of 120kbps to support it. In reverse, if you have 320kbps bandwidth, you could support 4 lines at G.711 or 13 lines at G.729. This table is to be used for estimation only, as there could be many other factors uniqure to you, that are not taken into consideration.

Lines (cont.)	Codec G.729a (kbps)	Codec G.711 (kbps)
25	600	2000
26	624	2080
27	648	2160
28	672	2240
29	696	2320
30	720	2400
31	744	2480
32	768	2560
33	792	2640
34	816	2720
35	840	2800
36	864	2880
37	888	2960
38	912	3040
39	936	3120
40	960	3200
41	984	3280
42	1008	3360
43	1032	3440
44	1056	3520
45	1080	3600
46	1104	3680
47	1128	3760
48	1152	3840

Lines	Codec G.729a (kbps)	Codec G.711 (kbps)
1	24	80
2	48	160
3	72	240
4	96	320
5	120	400
6	144	480
7	168	560
8	192	640
9	216	720
10	240	800
11	264	880
12	288	960
13	312	1040
14	336	1120
15	360	1200
16	384	1280
17	408	1360
18	432	1440
19	456	1520
20	480	1600
21	504	1680
22	528	1760
23	552	1840
24	576	1920

ShareThis