IP Telephony and Phones

Conferencing on my CUCM stopped working.  When I call someone and have them on the line, I hit the conference button and dial the 3rd party. After they answer I try to conference them back in and I'm getting "unable to setup conference"  was working ...

Hi, I'm having an issue with a specific meeting number in the Conference Now feature.Once I dial the Conference Now IVR Directory Number, I reach the IVR, the IVR then asks for the meeting number I put the required meeting number which is "629" and t...

Hi Team,We are having VoIP phone(Cisco 8841) which is having Enterprise Firmware and it connected to ring central. we need to convert it to MMP Firmware.We searched and we found out the procedure there they mentioned to buy a License.It mandatory to ...

Dears  I have issue with call forward. Call flow is Avaya PBX--H.323--CME G.W---SIP--->ITSP call forwarding works normally except when call comes from Avaya PBX. Call rings on cisco IP phone but didn't get forwarded. i tried to disable\enable H.450.2...

Hello, I have to set a call forwarding to a cellular number after 1-2 ringing of the physical phone. I saw that the command for call formwarding is num-exp but how can I set that the forwarding must be done after 1-2 ringing? Here I report the conf o...

I am using cisco ip phone with the sip protocol internally and i can make calls between them no problems there the problems begin when i go to dial out i am dialing out over an fxo port voice-port 0/0/0connection plar 1134!voice-port 0/0/1connection ...

i have a hospitality project with 1500 extensions. i have 2 tel sets in each apartment and the owner needs to have only one extension no per apartmentso that when you call the extension both telephone sets will ring at  the same time. how can i achie...

We purchased a DX 70 and 80 off of Ebay and I got them configured and registered with CUCM 12.5.1.   The DX 80 is registered as Cisco Webex DX80 and running load version: ce-9.12.1-8a845789ad6-2020-03-20The DX70 is registered as a Cisco Telepresence ...

I setup a hunt group containing 2 phones last week, the phones within the group use DTMF to release a turnstile when a call comes in, I've since added a further 3 phones to the HG and now the DTMF signalling appears to have stopped working. Any ideas...

Hello all. I have the following scenario. CUCM Cluster – 11.5(SU5)SME Cluster – 12.5(SU2)CUC Cluster – 12.5(SU2) The CUC cluster is integrated into the SME cluster, not the CUCM. My problem is simple. The CUCM cluster transfers an on-net call to a CU...

We are doing SIP trunk integration  between Cisco  call manager and NEC SV 8500. From NEC we are able to call Cisco user but one way speech ( Cisco user can hear NEC  voice)  but from Cisco we are not able to call NEC. Can anyone help me on this issu...

Hi guys, I know that ya'll will probably want the debug output,  but my organization is running a Cisco CME and we just started registering our Cisco 7821 via SIP and for some reason when we dial a specific call bridge. The call will always end at 16...

Hi Guys,  We just deployed some Cisco 7821s throughout our campus and for some reason when we try to press the phone book button that supposed to list the contacts the only that it says is "Requesting" and tries to load it, but will never load anythi...

Does anyone know of a good way to mount a 7821 or 7841 phone to either a single-gang electrical box, or standard telephone mounting plate (with keyhole posts)?The issue here is that the 78XX phones do not have the built-in keyhole mounting notches th...