Quickly deploy phones using Auto-Regisration and TAPS. Build hundreds of phones in excel quickly, then by pressing a phone buttons on each handset you’ll be able to merge the excel phone with a new handset.
MediaListExhausted alerts from CallManager RTMT – getting to the bottom
It is not uncommon to get emails like these from Call Manager RTMT alerts: Number of MediaResourceListExhausted events exceeds configured threshold during configured interval 0 within 60 minutes on cluster StandAloneCluster. There are 1 MediaResourceListExhausted events (up to 30) received
Delete the ITL file on a Cisco 9900 series phone
With many of the older phones, like the 7900 series, you could delete the ITL file on a phone by unlocking the phone and then hitting the delete softkey. With the new 9900 series of IP phones, including the 9951
Call Parking on CallManager
Call Parking is a feature that not every organization makes use of, but can be very useful. It’s not hard to implement, and with some training, can make your users quite happy.
Recording Call Manager using Asterisk
The Problem : Record calls from selected Call Manager (CUCM) phones. The Solution : Setup a recording server that will receive copies of calls from these handsets. Details : Since call recording isn’t built into Cisco Call Manager, we’ll need
Using an analog line for 911 / Emergency calls at remote sites
If your company sends all calls out a central location (i.e. the HQ), then you may have problems when someone at a remote / satellite office makes an emergency call. You don’t want emergency responders go to the wrong address because of a mis-configured phone system. You and easily fix this by installing a cheap analog line at each remote site, and routing emergency calls out of that.
Host not found error when accessing the corporate directory
After upgrading our CUCM cluster to 8.5 (from 7.1) we noticed that some model phones lost access to the corporate directory. When pressing the button they would get the error “Host not found” on the screen. After some trial and error we found that this was related to the firmware used on each phone. For example, a 7970 would work fine with firware but when upgraded to SCCP70.9-3-1SR2-1S the host not found error would creep up.
It turns out that Cisco has introduced a new set of secure URLs for phones to access CallManager over https.