CP-7821 showing incorrect timeing

[jugranneeraj1]

Hi,

We are using cisco CP-7821 IP phones but some IP phones are showing incorrect time. Need assistence for fix this issue.

[Aaron Harrison]

What sort of 'incorrect'? Minutes out of sync, or hours out of sync? I.e. drift, or timezone?

Have you configured and assigned NTP references  in CUCM?

Aaron

[jugranneeraj1]

Hi Aaron

Thanks for your reply...

Hours & Minuts both are out of sync....

Current time is 06:11PM but some IP phones are showing 12:42PM.

and I have already configured and assigned NTP references in CUCM.

Neeraj

[Dinesh Rathi]

Hi Neeraj,

Did you assign the correct date and time group for the phones in CUCM ?

Verify the Time Zone on the NTP server and your CUCM

[Aman Soi]

Hi Neeraj,

Just look into this bug related to Asia Time Zone for 78xx series.  what is firmware  for IP phones?

Any chace if u can upgrade one problematic phone to latest firmware

78xx phone displaying wrong time for Asia/Kolkata Timezone

CSCup96272

regds,

aman

[jugranneeraj1]

Hi Aman,

As per your suggestion, I checked the firmware version of IP phones and i found that some IP phones which are showing correct timing having firmware version

sip78xx.10-1-1SR1-4.loads

And some which are showing incorrect timing having firmware version 

sip78xx.10-2-1-12SR1-4.loads

> Time zone is correct because only 4 out of 30 showing incorrect time.

Neeraj 

[Aman Soi]

Hi Neeraj,

even though the problematic phones have got latest firmware available on cisco site.

either u can try degrading the firmware or open TAC to get ES version.

regds,

aman

[jugranneeraj1]

Hi Aman,

I have downgrade the FW version from sip78xx.10-2-1-12SR1-4.loads   To sip78xx.10-1-1SR1-4.loads but the problem is still same. 

Neeraj

[Aman Soi]

Hi Neeraj,

It is strange.

I am just guessing : can u try doing factory reset for one phone and then, check on sip78xx.10-1-1SR1-4 ?

regds,

aman

[jugranneeraj1]

Hi Aman,

Thanks for your help, 

Problem has been resolved after factory reset.

Activity:

1> Downgrade the fw version from new to old

2>factory reset

Now all IP phones are showing correct date and time. 

Regards,

Neeraj