CUCM Device Packs

I was running a DX80 with a CE firmware load but the lab CUCM we had installed did not support the CE Version of code, when i first tried registering the endpoint to the CUCM it came up with the following error: Failed: 485 Ambigious / Device Type Mismatch,i had a look at CUCM to see if the device load was installed but only the “Cisco DX80” endpoint was available. This is the Android version of the DX which is not the same as the ‘Cisco TelePresence DX80’ you see on the web browser of the endpoint.

for this you need to install the relevant device pack to get the ball rolling and endpoint registered.

These notes are applicable on the following versions but tested for 10.5(2)

  • Unified CM 11.5(1)
  • Unified CM 11.0(1)
  • Unified CM 10.5(2)
  • Unified CM 9.1(2)

Step 1: Verify the CUCM Version you are running

From web browser > About

ccm version

you can also get this information from the web browser:

admin: show version active
Active Master Version:


admin: show  status

Host Name         : cucm01
Date                      : Tue Aug 29, 2017 14:44:48
Time Zone          : British Summer Time (Europe/London)
Locale                   : en_US.UTF-8
Product Ver        :
Unified OS Version :

Step 2: Download the Appropriate Device Pack

Install a the relevant device pack for the endpoint that you wish to configure on the CUCM, in this case the DX80 is not a ‘native endpoint in cucm as such a device pack will need to be installed:

Device Type Device Release Unified CM 11.5(1) Unified CM 11.0(1) Unified CM 10.5(2) Unified CM 9.1(2)
DX70 and DX80 Collaboration Endpoint Software 8.3 cmterm-devicepack11.5.1

April 4, 2017


April 4, 2017


April 4, 2017


April 13, 2017

Collaboration Endpoint Software 8.3 cmterm-devicepack11.5.1

Nov 30, 2016


Nov 30, 2016


Nov 30, 2016


Dec 27, 2016

Please note:

  • A valid cisco support contract will be needed
  • Device package compatibility matrix is located here


Step 3:  Upload Device pack to CUCM

3a) in OS Administration under  >  Software Upgrades > Installation/Upgrade > Chose the Remote File system where your device pack is located.

3b) verify MD5 hash with downloads page where you installed the file from

Step 4: Restart TFTP Service

Control Center – Feature Services > Cisco Tftp > Restart

Step 5: Install Phone

now if you go to add new phone (device>phone) or go to device defaults (Device> Device Settings>Device Defaults) you will see the new device types:

Cisco TelePresence DX70
Cisco TelePresence DX80



Wrong time on phone

Several phones were  showing wrong time (one hour behind), upon reboot and others were fine.

1) Show clock and double checked NTP settings, NTP syncronysing

phone#sh clock
10:13:16.737 BST Thu Jun 16 2011

phone#sh ntp stat
Clock is synchronized

2) Phone system time zone:-

phone#sh telephony-service | s timez
timezone 21 GMT Standard/Daylight Time

3) Firmware issue – check firmware on cisco compatability for CME Version = SCCP11.8-3-3S

phone#sh ephone phone-load | s 001A2F63CD81
SEP001A2F63CD81    TERM11.DEFAULT         TERM11.DEFAULT        Initialized

huh, whats a TERM11.DEFAULT????

4) reset the phone = no effect

5) erase phone = **# -> settings ->  more -> erase

6) phone restarts upgrading firmware

phone#sh ephone phone-load | s 001A2F63CD81
SEP001A2F63CD81    SCCP11.8-3-3S         TERM11.DEFAULT        Initialized

7) check time, Correct. Success !

View phone display remotely

Whilst troubleshooting a paging application, the developer pointed us to a neat web page, it allows us to view the state of an IP Phone. Useful when troubleshooting.

Step 1:
Add Phone to the control of an Application user

Step 2:
navigate to

http://<Phone IP>/CGI/Screenshot

and enter credentials.

this will allow us to see the phone state.

so if someone calls in and says i cant hear my phone ring:

Its because your phone is on DND …Doh! Continue reading