VoIP Capacity Test

The results of this test are approximate. Actual results will vary based on data traffic, location, ISP, etc.

This test will determine your VoIP call capacity based on your current Internet connection speed. Please follow the 3 steps below. By finding the time with the greatest amount of Internet traffic, you can determine the minimum number of VoIP calls you connection will support.

To find the lowest upload speed we suggest that you:

1. Perform the test below at different times of the day under varying Internet traffic demands.
2. Record your upload speed for each test.
3. Use the results of your LOWEST upload speed, as this represents the lowest number of VoIP calls supported.

This test is applicable for North American sites only. It will produce inaccurate results for locations outside North America.

This test will determine your VoIP call capacity based on your current Internet connection speed. Start the test by clicking on the button below.

1. Determine your internet upload speed. 

Start the test by clicking on the "Click to Start MySpeed" below.
Once it is complete go to Step 2.

2. Enter your Upload Speed 

After the above test is complete, enter the upload
speed and units in the box below.

Upload Speed:

units kbps Mbps

Internet Connection Speed (in bps)
Dial Up	Broadband Light	ISDN	Satellite	T1	DSL
56K	128K	128K	400K	1.5M	1M	2M	3M	4M

Codec	Range of simultaneous VoIP conversations*
G.711	0	0-1	1	1	3-6	2-4	3-7	5-11	7-15
G.726	0	1	1-2	1-2	5-9	3-6	7-12	10-18	13-24
G.729	1	2-3	3-6	3-6	13-23	8-15	17-30	25-45	33-60