IP Telephony and Phones

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Good Day All,I have a unique issue i can't seem to figure out. I have a site (JB) that cant dial the CUC pilot. The CM logs show Call Rejected. When i use DNA, it shows route this pattern like its fine. I have multiple sites with hundreds of users, T...

Has anybody encountered an issue where your 88XX (specifically 8851) phones have randomly exhibited off-hook/on-hook tendencies?  Over the past year we have had upwards of 250+ phones randomly go off-hook then on-hook in less than a second, sometimes...

My customer has a CUCM cluster ( Pub & SUB) System version: 12.5.1.15900-66. PSTN access provided by SIP connection to one CUBE. Customers using jabber can establish outgoing calls to PSTN with no issue. Customers using jabber are UNABLE to receive i...

All, Hello.  I have a 7970 with a cnu25 boot loader.  I am trying to figure out which version of the SCCP firmware it is.  Does anyone have a complete version roadmap of firmware versions or are able to tell me the version of the image? I know that c...

actwon by Beginner
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Hello  Everyone, I have below two CUCM, one used for Primary and both er for redundancy, My question  do we need VMWAR Software for Two Server or one Software  that's enough :   1Server Call manager    1.1BE6K-M6-K9Cisco Business Edition 6000 (M6) Ap...

Hello!We have a particular fault at the moment due to a codec mismatch across some of our core trunks and our SIP cloud provider due to them changing their SBC dial-peer codec preferences.  We would like to amend this on our trunks to rectify the iss...

Hi,I can't get the right time zone (for France) on the cisco 8831. I have a two-hour time difference. I've seen that this is a fairly common problem but I haven't managed to solve it yet...Unfortunately, I don't have access to cucm and the cisco 8831...