Delay in Call Manager

[adeolu_adeoye]

Hi guys,

Quick question: What is the call processing delay introduced by Call Manager on a typical call? IP to IP phone and IP phone to PSTN (if there is any difference). I am trying to calculate the typical delay for calls in my network. I am trying to pin down the predominant cause of echo.

Thanks for the help.

Regards,

Ade

[s-doyle]

Didn't see anything on the specific call processing delay in Call Manager, but these may be helpful:

Understanding Delay in Packet Voice Networks

http://www.cisco.com/warp/public/788/voip/delay-details.html

Delay in Call Establishment

http://www.cisco.com/warp/customer/788/AVVID/interdigit_timeout.html

Echo Analysis for Voice over IP

http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/voipsol/ea_isd.htm

[adeolu_adeoye]

Thanks,

I have already reviewed the first and last documents but the 2nd one seems to include a lot of the additional details I am looking for. It does not say anything about Call Manager but it gives me a fair idea of what I am working with.

Thanks again and have a great day.

Regards,

Ade