C40 codec loosing configuration after reboot

[Simon Battye]

Hi,

I have a number of Cisco C40 endpoints (TC7.1.4) registered to CUCM (10.5.1).

There are some settings on the codec itself that i want to change:

• QoS Diffserv
• NTP Server Address
• Default call rate
• Screen Layout

Everytime i make these changes and the endpoint gets rebooted, they restore to the default settings once its re-provisioned with CUCM, is this the normal behavior? I understand that CUCM enforces certain settings upon provisioning but i don't see the option to change what i need on the actual device within CUCM. Also understand that i should enforce a call rate within regions but this doesn't seem to be working either.

Thanks, Simon

[Wayne DeNardi]

Do you run TMS?  If so, check the endpoints in there and any templates that are assigned to them.  Chances are that these settings are being pushed to your devices by a template, or via the settings within CUCM.

Wayne
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[Simon Battye]

Wayne,

TMS is not being used in this instance, the settings i need to change don't seem to be within the device in CUCM, unless you can change these somewhere else in CUCM?

Thanks, Simon 

[abrrymnvette]

Were you able to find the solution to this? I'm having the same issue with SX10's, MX300G2, and SX80's on CUCM10. After a reboot QoS and NTP are set back to default. 
I'm running TC7.3.0.8cb420c and TC7.2.0.aea6651

[Patrick Sparkman]

Take a look at the following guide, you'll need to configure the endpoints via CUCM.

Administering Endpoints Running TC72 on UCM 10.5.1

I didn't see NTP in that guide, but found an older guide where it said to do the following:

Setting a NTP Reference for the endpoints
In UCM Administration > System > NTP Reference
Configure a Phone NTP Reference for the endpoints.
*The NTP Reference must be in Unicast Mode.
*Assign to Date/Time Group, which in turn is assigned to Device Pool.

No reference to QoS though in that guide as well, but might be of interest to you just in case.

[Simon Battye]

Hi,

I resolved this by removing the cucm IP address from the external manager setting on the codec itself.

Thanks, Simon

[Patrick Sparkman]

Simon -

Most of what you want to configure Simon is in CUCM, check the guide I linked to above.  By blanking out the ExternalManager address, the endpoint won't get configuration updates you intentionally make in CUCM.

As abrrymnvette mentioned, QoS settings are a system wide setting found under System > Service Parameters > Cisco CallManager.

NTP can be found under System > NTP Reference.  It must be in Unicast mode, and assigned to a Date/Time Group, which in turn is assigned to a Device Pool.

Default call rate can be found in the guide mentioned, screen layout might be as well.

[abrrymnvette]

I found where the QoS settings are and unfortunately it's a global setting. So, as long as you have your devices provisioned by CUCM, these settings will be set every time the devices boot. 

QoS settings are under System --> Service Parameters --> Cisco CallManager  --> and about 3/4 of the way down the page is Clusterwide Parameters (System - QoS)