IP Telephony and Phones

I think its fair assumption at this point that 8821's don't work well for a lot of organizations without a boat load of tinkering. To fill that void in our org we use yealink w52's and have about 200 bases deploying. I'm curious what other companies ...

            With Akhil BehlWelcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about Cisco Unified Communications Manager Certificates.  Cisco Unified Communications Manager is the hea...

Currently we have multiple site across the country.   I want to make sure all internal calls are routed over the WAN, as of right now almost everything is working correctly. when an end user dials 91(212)XXX-XXXX we translate to sitecode and last 4 d...

I've got two 8821s flashing red, won't turn on.  On the USB Charger for 3 days.  Nothing in End User or Administrator Guide about flashing red LED indicator at top. blinking red.  8821 is new out of box, never been registered or turned on before.  I ...

My customer has some 2900/2800 voice gateways at their remote sites. They plan to have one or two POTS lines at these sites for 911 and SRST. They are requesting to have the voice gateway periodically test the line for dial tone and report via SNMP t...

Hi, when cucm is sending an Invite to an Device the FROM field is always <DN>@CUCM-IP. I want to have it like <DN>@FQDN I thought this would be possible with the SIP Profile Option "Use Fully Qualified Domain Name in SIP Requests". But when this is e...

Router version 16.03.01 I am troubleshooting quality issues however the command is not showing any of the quality stuff.

Hi I am recently deploying CUCM in our client company 4 BE7K SERVERS 1 as PUB and other three as an SUBS . I have installed all the CUCM part but unable to install two IM and P servers only one sub got installed and it is throwing some error 1. secur...

How does CUCM integrate with Microsoft Lync?  From what I am being told this is done through a downloaded application at the desktop that then ties out to call manager.  Is there any additional integration necessary?Please let me know if you do.Thank...

Hi Guys,   I have some ATA192 units that i need to provision via TFTP.   Tftp is up and running.   The ATA192's connect to it and ask for : </ata192.cfg> <\Cisco\ATA192-MPP\00bf7718f1ba.cfg>     Does anyone here know where i can get basic/minimal sam...

Hi,   is it possible to add a name for the specific public  number. So when I receive a call from that number on my phone I see the name? I did try adding number to the personal directory but name didn't display when i recived call.   I am using CCM ...