Min. bandwidth per call

[ntk]

Hi,

What is the min bandwidth required per call using any given codec (G729) over WAN, with QOS implemented.

How can the BW taken for a call over the WAN be measured without using any tools..?

Thanks in advance,

Nav

[dgoodwin]

Using G.729 over the WAN assuming no VAD is used (a.k.a. Silence Suppression) you will use 24kbps. If you compress the IP/UDP/RTP headers, you can get it down to 12kbps.

I'm not sure what you mean by measuring the per-call bandwidth without using any tools to measure it.

[ntk]

Hi,

Thanks for the reply..

Regarding the second qn I raised,

By saying "without using any tool" I mean without using any traffic analysis tool.

Is there any way of measuring the BW used by a call, at router/CCM ?

My intension is to get the BW value for a call over the WAN link..

Regards,

Nav

[nac]

You could use QDM (quality device manager) on the router, it's a free download from the cisco web site and sits on the router. This can monitor real time the bandwidth used for each class you have set up on the router eg voice class, video class and displays into a web browser.