IP Telephony and Phones

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hello, we have two sites connected to each other via IPSEC VPN Tunnel. one site has the CME installed in it. we have 7821 and 8841 IP phones. In the main site (where the CME is installed) the phones are registering normally and upgrade successfully....

I have a CP-8851 that is brand new running 12.0.1 SR1.  I do not have CUCM.  When I attempt to "downgrade" the firmware to the latest MPP firmware (11.1.1) it fails.  No errors are given.  The new firmware just shows up as "Inactive" with a green che...

BradTOK by Beginner
  • 1499 Views
  • 2 replies
  • 0 Helpful votes

hi  i have Cisco 7970 with sip software and he works with Elastix system , i have another device like that and he work normally , i config the normally device before 2 years ago , but now i forgot  who i can upload the dailplan.xml to my device , my ...

Murad* by Beginner
  • 264 Views
  • 2 replies
  • 0 Helpful votes

I'm looking to upgrade the firmware of my 8851 IP phones.  Some of the info I've found regarding the process say to use an SFTP transfer of the firmware files to the root directory.  I was wondering why they suggest to do it this way, is there someth...

bwolf by Beginner
  • 618 Views
  • 4 replies
  • 0 Helpful votes

Hey,   We have a user that is calling the front desk(4400) internally from their extension (4411) and would like for the ladies at the front to transfer him to another person's ext(4123). But he runs into an issue when the person at 4123 does not ans...

kaylap by Beginner
  • 460 Views
  • 1 replies
  • 0 Helpful votes