IP Telephony and Phones

Dear All, We are suffering with a strange issue... Our office having multiple branches and all the branches connected to Data Center. CUCM hosted in Data center... and SCCP 6921 & SIP 8971 phones are deployed in all the branches...One branch office f...

Hi, We have a UC 540 which was working on ISDN and we have moved it to a new building using SIP but we are unable to get the SIP to work. As discussed I can see the VOIP peer is connected but we cannot get the UC to make or receive calls. I have run ...

still not workng .please check my configuration again after imade some chages.application service app-b-acd-aa flash:bacdprompts/app-b-acd-aa-2.1.2.2.tcl  param max-time-call-retry 600  param voice-mail 5000  paramspace english index 1  param service...

Hi All,I have a problem with dtmf translation in my voice gateway.This is the environment:Cisco Call Manager 4Cisco 2821 IOS Voice GW - Version 12.4Phones registered to CUCM via SCCP (Cisco 7960, 7970)ISP SIP Trunk offering SIP-INFO as DTMF The SIP t...

Hello        I have CUCM 8.5.1.10000-26, and I need to install ip phone 7821, but I don't have the device to add it to Call Manager.        mi question is What is the release 8.5.1 that I have to update to get this ip phone in the devices.        and...

Hello,I am struggling to figure out how to apply Calling Party Transformation Patterns on CUCM for MGCP gateways.Basically, we use MGCP gateway everywhere so I need to apply CPTP on CUCM. However, I know how to do this using a gateway (CME) as an exa...

We have a site (a new site) that has about 50 or so ATA 187's being used for faxing. Were having faxing issues where some fax machines can't fax to external (to the PSTN) fax machines. They seem to be related to Ricoh fax machines that are Super G3. ...

CallManager Express 8.6, IP Communicator 8.6 UC540Connecting on site everything connects and works fine.  When connecting through VPN the CIPC registers but the line does not show up.  Have verified that the connectivity is wide open between the vpn ...

I am facing a wired scenario.  Topology: PSTN = SIP = CUBE = SIP = CUCM = IP Phone When a single IP Phone calls a conference bridge on a PSTN network there is no RTP Delay. But when multiple users join from different sites to same conference bridge u...

I have a CUCME 10 gateway that is registered on a  callmanager as H.323 gateway.On this a Cisco 8831 SIP conference bridge that is not generating DTMF. No sound heard in the other end when pressing digits, its just muting the sound. Anyone got a tip?...

A couple of our customers recently moved their voicemail from an on-premise Exchange server to a cloud-based solution with Office365.  Afterwards, users are reporting delays of around 5-seconds from the time the Messages button is pressed to when the...

Dear Experts, can we manipulate the called URI number like we manipulate the digits (e.g Translation pattern) ?can we have manipulate the incoming called number to match a route patternfor eg. the called uri is 955XXXX@CUCM-addressroute pattern 955XX...

I'm having a strange issue that appeared a couple of weeks ago.  I have not made any upgrades since October so I don't think that's the issue.  I'm running CUCM 8.5.1.15900-4.The issue is that one of my phone's shared line appearance does not ring wh...