IP Telephony and Phones

Hi Team, We have created a DN and User account to be used to register 3CX SIP Phone with CME. As per the attached text file where you can find DN 401 to 404 and associated user accounts from Apps1 to Apps4. We have created a hunt group as well, where...

I can't find anywhere that shows why the ipv4 changes every time to a different node on the iPhone. This is on prem with no cell service in voice only mode. It selects nodes that have Call Manager Services Inactive. In the UCM when the App is registe...

We have a setup of about 400 users and use Verint as a call recording solutionThe voice vlan is spanned across to the destination port where the verint VAM is connected. Lately we have seen that the recorded calls are cracking and are not clear.On ch...

When i receive a call from PSTN there is extra digit shows in my desk phone For example the orignal number 01234567Butbi received as 001234567

Quick question, when a Register goes to CallManager from Jabber for Android 14.3.2 , why does CUCM 15 send back a 488 Not Acceptable Media? Client works fine, can make/receive phone calls, seems to be cosmetic.Is this a Jabber defect?  Can't find a b...

Hello Cisco Experts,We've got a CUCM system connected to a 3rd party voice application via SIP trunking. It is basically a conversational bot application. The problem is the sometimes callers on far-end (PSTN calls) disconnect the call in between the...

Dear Cisco Teamhelp me in the following outgoing and incoming calls not working for the config,the following installed device spesification:cisco ISR4431/K9Virtual CUCM 12.5.1.12900-115Thanks before

Hi, I need to modify the "From" field in the SIP-Header. The original Sent SIP Header look like this: _________________________________________________________________________ Sent:INVITE sip:0408545545@10.15.165.102:5060 SIP/2.0Via: SIP/2.0/UDP 10...

Hi, I have a problem with Microsoft Teams Direct Routing. I have a cube cisco 4331 as SBC on premises , but when  I try to make calls to PSTN  I can´t. I receive calls from PSTN without problems. I have this messages in the logs (cube): SIP/2.0 488 N...

Does somebody know WHY is mentioned everywhere (CCO, networkers,etc) that UDS home cluster discovery requires ILS, WHEN UDS home cluster discovery DOES NOT requires ILS to be even operational. Thank Alex

Hello community! I have a CP-8851 phone with 5 lines. I am responsible for 2 of the 5 lines. I would like to silence the ring of incoming calls for the 3 lines for which I am not responsible (to help me focus). I do not want to change the ringtone or...

Does anyone know if it is possible to set the default background image from CME, so I dont have to go to every phone and manually select the background image? Maybe a service phone setting within telephony-service section I can distribute images no p...

Hey all,Relatively new to IP phones here. I setting several Cisco 8865's for our small office for use with Zoom Phone. I purchased a few refurbished models, all of which have 2015 firmware (the old blue interface). When following Zoom's provisioning ...

Like the title says, we bought twenty 8851 phones about 2 years ago, and in the last 12 months, 4 of them have "died" - the phone will reboot mid-call, and when it comes back, none of the physical buttons work except for the receiver button (picking ...

I want to configure text and the audio alert to the IP phone which are registered on Webex. Also do I need to set up any server/system to have this working.