IP Telephony and Phones

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Hi Experts,   My sip Phones do not fallback to Call Manager and stay register with Survivable Remote Site Telephony.  It seem to be the bugg CSCvd03500. I would like to upgrade the phone to the latest version 12.   I have never upgraded ip phone with...

O.Zang by Level 1
  • 1342 Views
  • 7 replies
  • 0 Helpful votes

Hello.  On CUCM 11.5 I would like to achieve restricted calls to specific few DN /be access from specific DN. Is there a way to restrict who can dial a specific extension? Example: like "P.A (A) and The Boss. (B) " So "B", can be get calls from only...

abdallahm by Level 1
  • 1085 Views
  • 3 replies
  • 0 Helpful votes

Hello, I have CUCM 7.1. I'd like use it TFTP server for config files SIP phone "Aastra".   Aastra need filles *.cfg (aastra.cfg, etc), but when I upload this files to TFTP Server CUCM and I reboot Server for apply the changes, I can't find files *.cf...

provinciy by Level 1
  • 597 Views
  • 2 replies
  • 0 Helpful votes

Hello All, In our lab we had 20 have number of Cisco 7960G IP Phones. Some 9 of them are facing ‘tftp file not found’ issue. First of all, can anyone explain what could cause this? I have checked firmware version for the operational ones and this is ...

rono711 by Level 1
  • 6060 Views
  • 8 replies
  • 0 Helpful votes

Hi   I have 4 phones that are running SCCP VERSION BOOT ID PC0303010001,  APP LOAD ID P00308000900   I need to upgrade these to work with another sip provider and although I have downloaded the files I think I need the phone reports that it cannot fi...

janinea by Level 1
  • 411 Views
  • 3 replies
  • 0 Helpful votes

Hello... I recently acquired three ATA190 for analog phones I still have. I am trying to configure one of them and some of the issues I have found are: - CUCM is rejecting it to register. I know this is a topic that is on the topics, but I want to re...