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Community Member

Changing IP Phone time settings

Hi,

We are using CCM 4.1(3),some of the IP Phones are showing incorrect timing on the display. Pls let me know how to change it to correct time.

Regards,

10 REPLIES
Gold

Re: Changing IP Phone time settings

What phone models are showing incorrect time and how off are they. One thing you can try to do is update the phone config/restart TFTP Server and then reset the phones once.

Community Member

Re: Changing IP Phone time settings

Hi,

It's happenning for some of the 7940 IP Phones and one 7970 IP Phone.

Regards,

Gold

Re: Changing IP Phone time settings

Have you tried to reset the phones to check if that changes anything ?

Community Member

Re: Changing IP Phone time settings

Yes, i tried resetting one IP Phone . But still IP Phone shows incorrect timing..

Gold

Re: Changing IP Phone time settings

Can you check and see if the phones are not running an old firmware. If yes, you should upgrade them to a newer version.

Also, the phones try to sync the time with the CallManager at 2 AM everyday. And ensure that Timezone configured for these phones are correct and match the settings of the phones which display the right time

Community Member

Re: Changing IP Phone time settings

All the IP Phones are having Date Time Group Configured as a Indian Standard Timing.

Is it we need to do any individual configuration for time setting on IP Phones?

Regards,

Gold

Re: Changing IP Phone time settings

No, that should be it. How many mins/hours is the phone off the correct time ?

Community Member

Re: Changing IP Phone time settings

The max time difference we found of about 30mins from correct time. Remaining are 10mins,17mins,5mins.. etc.

Community Member

Re: Changing IP Phone time settings

The oddity is that the times differ on different phones. Our time was off by a couple of minutes on all phones so we ensure all of our call managers were pointed to our NTP server and under the service made sure it was set to automatic so if the servers reboot the service starts. CM 4.1(3) 7940 and 60's

Silver

Re: Changing IP Phone time settings

watch out this could be SW related. take a look at this for example:

CSCeg23928

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