Phones getting unregistered frequently from call Manager

[Vibha Verma]

Hi

We have Call manager in our HQ and some phones in Branch in a different country. From CUCM there is a SIP trunk towards router in branch.

Users in branch occassionally complain of phones getting unregistered.HQ and branch are connected through internet with suffiecient BQ 14 Mbps on each side.

Thanks for helping me out.

Regards

Vibha

[Manish Gogna]

Hi Vibha,

You can check the Phone status messages to start with and also check the app / syslogs on the cucm corresponding to the time stamp when they are unregistered to see the reason code for the unregistered event. However, a packet capture would be ideal to check what exactly is causing the issue as we can see which packets are exchanged or getting dropped between cucm and IP phone.

HTH

Manish

[Vibha Verma]

Hi Manish

One question, how do we check app/syslogs on CUCM.

Thanks

vibha

[Terry Cheema]

You can check from both RTMT and from Server CLI as well. But RTMT may be easier for some one not familiar with the directory structure.

Follow below instructions for RTMT:

Go to RTMT>Tools>Syslog Viewer

From the drop down select the node

Select System Logs

Application Logs

-Terry

Please rate all helpful posts

[Vibha Verma]

Hi terry

Thanks for the reply, but also tell how do we check from CLI

command for that?

Regards

Vibha

[Terry Cheema]

To list application logs:

file list activelog syslog/CiscoSyslog.* date detail

To list system logs:

file list activelog syslog/messages.* date detail

To view: use the file view command.

-Terry

Please rate all helpful posts.

[Venkatesh Perumal]

from the syslog viewer with RTMT

[Mohammed al Baqari]

I am assuming that BR and HQ are connected over VPN. May be worth looking at packet loss / uptime report between the sites.