IP Telephony and Phones

Hi Experts,I am sitting with an unique issue where my Auto Attendant works perfectly from inside the office, however it is not reachable from external calls.Connection ISP > SIP > CUBE > SIP > CUCMWhat I am seeing is as soon as I direct the call to C...

Dear Sir i am new to 8851 ip phone , just need help for speed dial kem i do program speed dial entries into the device and when the phone is turned off the entries are lost is there is any advice why list is forgotten from the phone ? thanks

Hi to allMy question is very simpleIntercom working fine , but the issue is that you can call only one intercom phoneWhat is the requirement if i want to perform an intercom call to a multiple phonesDoes this work with Hunt group?Regards

Hi all. In the screenshot I encountered a problem: immediately after turning it on, this appears. Has anyone else encountered this problem? It asks for a domain, username and password. The phone is completely new. There is a way to access the setting...

My company has 4 Call Manager subscribers, two at our HQ datacenter and two at our colocation.   We powered down everything at our colo this part Saturday because we are moving it out of state.  Since then, we have had random locations having switch ...

HI, we have project requirement to integrate the Iridium Satellite phone integration with Cisco PABX to make a calls in case of emergency. Can you please suggest, what can we achieved with this interface.1) can we make calls on any number at cisco PA...

We are a healthcare facility.  For past several months we have had several complaints from users that calls are often full of static.   We are running CUCM 12.5(1)SU8 and the phones are primarily 8811 running current firmware.   We have replaced phon...

Our Forum Alert III Secondary Crash Net (SCN) is inoperable. I've heard the cisco cm could be configured to set up some devices to act as a ringdown, they called it a “Switch Box.” This would allow our Base Operations guys to have a work around from ...

I bought a new KEM (PID: CP-8800-A-KEM) along with the cisco ip phone CP8851 but unable to power up the KEM. I am using C2951 ISR with IOS 15.6 and Cisco Unified Communications Manager Express (CME) version 11.5. Please note i am using call manager e...

This is a 2-server cluster of CUCM 12.5It is a small deployment of around 100 phones that don't handle a large volume of calls.I'm pulling logs for the CallManager service.Typically I would expect to be able to go back at least weeks but I can't pull...

I have headset Bluetooth paired with cisco phones and working fine, but auto answer not work. I tried to enable Auto answer with headset on DN but still any incoming call on phone not auto answer, is there anything I miss other than configure auto an...

Hey Hi, how are you today?I need to update the telephony-service version from 12.0 to Version 12.5 in order to the expansion key module on cisco phone 8865 works on my router 2951.I read many websites and the most "easy" solution is update the iOS ve...

Installing RTMT 12-14 Versions on Windows 11 requires Java releasesjdk 1.8_0 101, jdk 1.8_0 102;  I installed 4 total versions including jdk 11.0.15.1 and jre 1.8.0_341.You must however follow these steps first in order for the install to work otherw...

Cisco C8000V. Cisco IOS XE Software, Version 17.06.05. Trying to implement static PAT to translate SIP traffic between private and public voice gateways.<172.17.20.36:3002>    <Cisco NAT 1.2.3.4>      <5.6.7.8:5060>ip nat inside source static udp 172...