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How Much Bandwidth does my Business need?

How Much Bandwidth does my Business need?

Digital Techniques (Asia) uses this formula to calculate your bandwidth requirements:

VoIP Bandwidth + Normal Office Needs + 25% Headroom = Internet Bandwidth Needed

When making your bandwidth calculations please remember that only 80% of broadband DSLs normal bandwidth is available for data. For example a 128 kb/s broadband connection will usually only have 100kb/s of sustainable bandwidth available. Therefore we recommend that when you are calculating your bandwidth requirements it is always better to over-estimate.

A single VoIP call consumes approximately 33kb/s of internet bandwidth. Therefore most standard internet connections of 512/128k can handle 3 simultaneous calls. Also, you must remember if you are sharing your internet connection with VoIP and everyday internet usage you will need to have adequate bandwidth.

ADSL Connection

SIP Voice Channels

IAX Voice Channels

256/64k

1

4

512k/128k

3

8

1500/256k

8

20

512/512k

16

50

 

* The above estimations are for "VoIP only" traffic only on a quality internet connection. These benchmarks are made using the standard G729 Codec

 

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