[cisco-voip] Noise on BRI circuits.

[Wes Sisk]

What kind of noise?

some audible artifacts have been mapped to well known causes:
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_white_paper09186a00801545e4.shtml

Regards,
Wes

On Apr 19, 2012, at 8:44 AM, Robin Clayton wrote:

Dear All,
 
After 8 months our installers 3 experts told us the reason they could not set up our remote sites SRST router was because the ISDN BRI lines were not active!
 
With no experience of ISDN config, it took me 30 mins to get the router answering calls from the ISDN lines and another half hour to push them to the call manager.
 
 
However, there is a massive amount of noise on the connection. Both when the router dial-tone is present and when the call is pushed to the phone on the call manager.
 
I can’t figure out why!
 
Any ideas???
 
Thanks
 
Rob
 
 
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