Implementing BE6000

[anazir002]

i want to implement Cisco BE6000 communication server in my office with around 8 phone connections. Can anybody tell me whats the bandwidth i need to make the system work efficiently?

[George Thomas]

A G711ulaw call consumes roughly 80Kbps including overhead. Hope that helps you to calculate the amount of bandwidth required for voice calls. I would add addition 3% bandwidth for signaling.  

[Martin Koch]

Here is a table with some bandwidth information:

http://www.cisco.com/c/en/us/support/docs/voice/voice-quality/7934-bwidth-consume.html

If you google for voip bandwidth calculator you will find some tools helping you to calculate as well.

There you will also see that bandwidth requirements have different views, depending on where you look at it.

G711 or G722 is 64kbit/s, so that would make it 512 kbit/s, but you have overhead like RTP, UDP, IP and for the link so

depending on where you look, you might end up with around 100kbit/s per call.

There are some lower bitrate codecs, but your setup has to support that and the audio quality will get worse.

If you talk about 8 chanels with an ok audio quality, you can estimate around 800kbit, just say a dedicated 1mbit link.