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Time not syncing on ip phone 8941

Hi All,

All my cisco 8941 ip phones are not syncing with NTP server which is my gateway cisco 2811.

i checked on cucm cli its working fine but the phone time is not getting updated, but when i restart the phone the time will be updated and againg stuck at the time until next restart.

IP phones 8941 are configured to use SIP protocol.

and we have 6921 phones which uses SCCp and are working fine.

ntp.PNG

i configured my gateway cisco 2811 as NTP refrence and using direct broad cast, but no use.

i tried to use a public NTP server but it is also not working.

ntp 2.PNG

can any one help me please...

Everyone's tags (1)
2 ACCEPTED SOLUTIONS

Accepted Solutions
Hall of Fame Super Silver

Re: Time not syncing on ip phone 8941

Upgrade your firmware to latest available one, these phones very buggy in early firmware releases.

Chris

Sent from Cisco Technical Support iPhone App

VIP Purple

Re: Time not syncing on ip phone 8941

Hi Asif,

Can u try upgrading the phone firmware to 9.3(4) for one of the 8941 IP phones and check ?

I can find bug for 8945 IP phone which is somewhat similar to your issue.


8945 SIP: NTP can't sync and refresh srv time until 1/2 hour later.

CSCto35836

regds,

aman

8 REPLIES
New Member

Time not syncing on ip phone 8941

Any firewall in your network blocking.

VIP Purple

Time not syncing on ip phone 8941

Hi Asif,

what is firmware u are using for 8941 IP phones?

regds,

aman

Time not syncing on ip phone 8941

Hi Aman, Omarpal,

Thanks for the reply,

the firmware is  SIP894X.9-2-1-00

There is no firewall between gw , call manager , IP phones.

IP Phones---->Call Manager----->GW.

Hall of Fame Super Silver

Re: Time not syncing on ip phone 8941

So you have NTP reference defined in CUCM and assigned to the date/time group? Sip phones do not pull time from CUCM like SCCP phones.

Chris

Sent from Cisco Technical Support iPhone App

Time not syncing on ip phone 8941

Hi Chris,

yes, as you can see my first post, NTP refernce is defined and assigned to CUCM for sip phones, but the phones are not updating its time.

VIP Purple

Re: Time not syncing on ip phone 8941

Hi Asif,

Can u try upgrading the phone firmware to 9.3(4) for one of the 8941 IP phones and check ?

I can find bug for 8945 IP phone which is somewhat similar to your issue.


8945 SIP: NTP can't sync and refresh srv time until 1/2 hour later.

CSCto35836

regds,

aman

Hall of Fame Super Silver

Re: Time not syncing on ip phone 8941

Upgrade your firmware to latest available one, these phones very buggy in early firmware releases.

Chris

Sent from Cisco Technical Support iPhone App

Time not syncing on ip phone 8941

Thank you Chris and Aman,

i will try to upgrade the firmware now, if it solves the problem it will be great..

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