IP Telephony and Phones

Hello All,   I hope you all enjoyed time off over the festive period.   I am looking to change the domain name on CUCM but looking for clarification if doing this will change the ITL certificates for all IP Phones?   I have reference the following do...

Hello,  Is it possible to activate some sort of IVR service on my Cisco 2811 with current version of OS 12.4(24) T4, and Cisco Unified Communications Manager Express - version 7.1.   If not, is there anything else i can do in order to activate IVR se...

Happy New Year and wishing you a prosperous 2018!   I seek help from the community around a question raised by my customer regarding IP phone trade-in.   They have around 100 IP phones that they wish to trade in and I have been led to believe that th...

Scenario:1-) Phone1 calls a PSTN phone number (5555555)Phone 1 (ext1001)-----SIP---->CUCM----SIP--->CUBE--- SIP-->PSTN2-) Call is established and phone 1 initiates a transference to another PSTN number (6666666)  putting 5555555 on hold2-) phone 1 es...

Hi all, trust you are doing well, We have an ISR 4331 voice gateway, our client wants to use it to establish a sip trunk to the itsp for routing all the incoming calls through this path to their call center housing the above mentioned voice gateway. ...

Hi everyone, We have started getting random IPCs that we install and will just sit on "Configuring IP". This has happened to two so far, but we have setup others during the past week that worked without issue.   We can see that it is receiving the TF...

We have tested the Cisco Paging server in our environment and have an issue.  Almost every 8861 phone (wired, not wireless and using SIP) has a headset attached to it.  The phone remembers the last device you used (handset or headset) when you last u...

Hi,  I have call manager 4.2, once i press on any service on phones it shown authorization required "username, password and realm" as attached photo. in the other side: the event viewer logs messages said: The server was unable to logon the Windows N...

Hi everyone! I'm configuring SRST mode with a CUCM 9.1. When Router goes to SRST Mode the registration of the phones to the SRST router and incoming calls from PSTN through the FXO ports are working fine, but if I try to dial an internal/external num...

I want to know if what I am doing is fine, or if not, what is wrong with it.   I have an incoming called-number and destination-pattern in the same dial-peer.  The reason for this is because the survivability service has to match on an incoming calle...

Hi i'm using cucm 11.5 and i would like to configure Cisco IAD 2431 with 2 T/E ports  using mgcp is it possible ? i need help   best regards

Hi Cisco Team,   Please let me know how to convert anonymous calls to a generic number from gateway to CUCM. Below is my setup. SIP provider -> Gateway - > CUCM.