IP Telephony and Phones

Hello everyone,We are using 8841 and 8841. I know that in cucm 12.5 you will need enhanced licenses. But what about new flex subscription type ? which subscription license we need for these models ?  

Hi I have Cisco CME (C2801) version (12.4(15)T9)Does this CME and its software support the IP Phone 8841?and if it doesn't, can it be supported by updating the IOS version of the CME?

This is a new one on me.  We just finished updating our dialing plans and everything and ever since there are some cell phone numbers that if I call from my VoIP phone to the cell phone, it goes directly to their voicemail.  If I call the same number...

Hello Everyone. I'm trying to configure the sip trunk from my service provider(PSTN) on my ISR 4451 Router(LGW). I have the following scenario: I have created a user 2 user in webex control Hub, and assigned them pstn numbers to make and receive exte...

I am installing ATA190 to elevator phone which ring downs to an extension.  When the call is answered and disconnected it goes to a busy tone. We reset ATA190 to release it.  Has anyone experienced this issue? Thanks DD

HiI suddenly started facing a problem. When call forwarding is applied on an extension and it is called from external number then i do get call forwarded on external number but it adds +51 to the number.suppose I have Ext 7225 (externally its reachab...

Hello, I'm trying to configure my Cisco IP phone 7911 on the Cisco router (CME) 3.5.3 CISCO 2911/K9 but stuck in the upgrading page as attached photo and that's it. I did all the configuration but still the same and the phone doesn't retrieve the dat...

Hi, I have an ATA registered at the CUCME with extension 1502. This extension receives internal and external calls. I need calls coming through that ATA's FXS port to be directed to extension 1504 without calling 1502. I tried to do a call forwarding...

Hello,   I am trying to learn VOIP functionality on a cisco 2911. I hope someone on here can help me with this.   I have a VOIP provider called VOIP.MS I have a Fiber ONT connection going into a Palo Alto Firewall which handles all my routing and DHC...

With 3PCC models can someone explain the differences between the acronyms in the firmware? I know MPP, but what does MER and MES mean and what is the differences?