We have two 5508 controllers.  One is set up to be Primary (Master Controller) and the other Backup.  We have several campuses connected via fiber to 3850 switches.   Have an issue at one campus after they lose connectivity to Primary.  The APs move ...

We are currently on version 8.6.1.  We would like to be able to use the 8851 phones.  Seems that I had read that this is just a Device Pack that is needed.  Does that require a Cisco Contract?   Thanks in advance

We have two CUCM servers and one Unity server running 8.6.  We have received several complaints that outside callers can hear recordings in the background when they call in.  The inside user doesn't hear the recordings.  I'm pretty sure it is a Call ...

I have two 7915 attached to a 7975.  I have set up a 7914...so I am familiar with the steps involved with setup.  Phone is running SCCP75.9-2-1S.  Firmware on CUCM for 7915 is B015-1-0-4-2.  If I select the IP of the phone from CUCM to bring up the w...

We have many DIDs that are associated with Call Handlers in Unity.  Lately...only one of the DIDs has been randomly failing.  Outside callers will just get ringing.  It seems to clear up on its own.  Usually lasts from 1 to 4 hours. And it may go for...