IP Telephony and Phones

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Could multiple "attempt transfer--result fast--busy"  be the result of a MTP failure?our error logs are showing "resource not available" but it is not telling us what resource.

Originally posted: 2013-Oct-03.More than two years ago, I informed Cisco that various pieces of documentation detailing the GB number plan were inaccurate, incomplete, and out of date.The majority of the published data seemed to be from some time bac...

g1smdvoip by Level 3
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I want to upgrade my host to ESXi 5.1 (from 4.1) but I have not found the upgrade on Cisco's site. Am I supposed to get the Cisco branded ESXi 5.1 iso from VMware? And is there a difference if my hosts are running my CUCM phone system?My hosts are cu...

marks by Level 1
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Hello Everyone,I am running into an issue with configuring 7962 connecting to Call Manager over VPN Connection. I get VPN Authentication Failed with "All Concentrators Failed" error in Status messages.. Please look at the following config on ASA:cryp...