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New Member

Time Stamp on all the phones is wrong

We're running CUCM Ver 7.1.5, the time stamp on all the phones is 4 minutes fast.  How do you resolve this issue?

Phones installed include: 7962, 7942, 7911, 7912, 7937, 7940, 7941.

Joaquin
23 REPLIES
Hall of Fame Super Silver

Time Stamp on all the phones is wrong

SIP or SCCP load?

Is the time off from what CUCM is showing?

What is the firmware version?

Chris

New Member

Re: Time Stamp on all the phones is wrong

Chris

SCCP42.9-1-1SR1S

I'm new at this, where do I find the CUCM time?

Joaquin
Bronze

Time Stamp on all the phones is wrong

Use the command "show status" in the CLI or go to show > System in the OS Administration page.

Gareth

New Member

Re: Time Stamp on all the phones is wrong

Thanks Gareth

Yes the time stamp is the same as the phones.

Joaquin
Hall of Fame Super Silver

Re: Time Stamp on all the phones is wrong

What does "utils show ntp" show? Make sure your CUCM is synched with NTP.

Chris

New Member

Re: Time Stamp on all the phones is wrong

Chris,

I don't see "Utils" on any of the Pull Down Menus on the OS Administration page.  Under settings I see the NTP Server is the Publisher and the  Status="The NTPService is accessible". 

Joaquin
Hall of Fame Super Silver

Re: Time Stamp on all the phones is wrong

This is from CLI, loging via SSH to the publisher and issue this command.

Chris

New Member

Re: Time Stamp on all the phones is wrong

Chris,

When I issued the command "utils show ntp" at the CLI admin: prompt

The sytem returns: Executed Command unsuccessful, No valid command entered.

Joaquin
Bronze

Re: Time Stamp on all the phones is wrong

Try:

utils ntp status

Gareth

Bronze

Re: Time Stamp on all the phones is wrong

My guess is that you'll end up referring to a new NTP server at the end of this. Etiher a self built one, or pointing to your windows DC.

Gareth

New Member

Re: Time Stamp on all the phones is wrong

Gareth,

OK if that's where I'm going with this I think I'll call Cisco TAC for support, I didn't think this would be such a big deal with the time stamp.  Thanks to all for the help.

Joaquin
New Member

Re: Time Stamp on all the phones is wrong

That got it, the time stamp is four minutes fast, just like the phones.

Joaquin

Re: Time Stamp on all the phones is wrong

Cheajt,

If your NTP is not synchronized, the phones will use the time configured on the switch that they're directly connected to. You will need to verify your NTP source to fix the synchronization.

HTH

Regards,

Yosh

HTH Regards, Yosh
Bronze

Time Stamp on all the phones is wrong

There really isn't much to setting an ntp reference in CUCM. You probably already have an NTP for your existing network switches, but if not, there are plenty of examples on the interwebs. I personally set up a small VM with CentOS just for ntp services for switches and UC devices. (Linux NTP Setup). Once that is done, follow this guide to configure the publisher for the new NTP server. Note that at the end, you will have to reboot the whole cluster:

"After deleting, modifying, or adding the NTP server, you must restart all other nodes in the cluster for the changes to take affect."

Gareth.

P.S: As I've just found out, Windows NTP servers are not supported:

Cisco recommends synchronizing Unified CM with a Cisco IOS or Linux-based NTP server. Using Windows Time Services as an NTP server is not recommended or supported because Windows Time Services often use Simple Network Time Protocol (SNTP), and Linux-based Unified CM cannot successfully synchronize with SNTP.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/netstruc.html#wp1185637

New Member

Re: Time Stamp on all the phones is wrong

Gareth,

Thanks,  I'll look over your references, but I'm thinking my problem may stem from the fact that the NTP service is running off of my two 3945 Voice Gateways and the voice devices are all on an isolated network.  The VoIP network does not connect to the regular companies network.  I'm wondering if it's possible to disable NTP and just adjust the time via the Operating Sytem Administrator web interface or if that would even work.

Joaquin
Bronze

Re: Time Stamp on all the phones is wrong

What's your ntp reference for the 3945? Since your CUCM server gets its time from the 3945 (I wrongly assumed you were getting the time locally), that's where the issue is. Can you show us the output of:

show ntp status

and

aho ntp associaions

This will show us the time on the 3945 and where the 3945 is getting it's time from. It's really not a good idea to have a local time source for cucm... that would rely on the cmos of the server and you're way more likely to have some time slippage.

Gareth

New Member

Re: Time Stamp on all the phones is wrong

Gareth,

See the putty log, the aho ntp associaions command didn't work.

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2014.01.17 09:09:47 =~=~=~=~=~=~=~=~=~=~=~=

login as: Administrator

Administrator@10.28.0.6's password:

Last login: Thu Jan 16 10:08:25 2014 from 10.28.11.14

Command Line Interface is starting up, please wait ...

   Welcome to the Platform Command Line Interface

admin:show ntp status

Executed command unsuccessfully

No valid command entered

admin:utils ntp status

ntpd (pid 18712) is running...

     remote           refid      st t when poll reach   delay   offset  jitter

==============================================================================

*127.127.1.0     LOCAL(0)        10 l    1   64  377    0.000    0.000   0.004

x10.28.0.35      LOCAL(1)         4 u   15   64  377    0.310  -9052.7   3.949

x10.28.0.36      LOCAL(1)         4 u   28   64  377    0.300  130335.   4.214

synchronised to local net at stratum 11

   time correct to within 11 ms

   polling server every 64 s

Current time in UTC is : Fri Jan 17 15:09:07 UTC 2014

Current time in America/Chicago is : Fri Jan 17 09:09:07 CST 2014

admin:aho ntp associations

Executed command unsuccessfully

No valid command entered

Joaquin
Bronze

Re: Time Stamp on all the phones is wrong

Sorry... that last command was supposed to be:

show ntp associations

I'm trying to figure out exaclt where your systems are getting time info from. I'm assuming that the time on the gateway is also off?

Gareth

New Member

Re: Time Stamp on all the phones is wrong

Gareth,

The 10.28.0.35 and 10.28.0.36  devices are my voice two gateways, the ones that connect to the PSTN and the VoIP network.  When I query the "Phone NTP references" from CUCM  Administrator web interface it list the two gateway addresses above and my publisher & subscriber servers too.  Below is the associations output from the gateway.

login as: Administrator

C

This system is company property. Unauthorized access or use is prohibited and

may be subject to discipline, civil suit or criminal prosecution. To the extent

permitted by law, system use may be monitored, recorded or disclosed and using

the system constitutes your consent to do so. You also agree to comply with

procedures for system use and protection of information, including but not

limited to proprietary information, personally identifiable information, and

export controlled information.

Using keyboard-interactive authentication.

Password:

SanAntonio-VG1#show ntp status

Clock is synchronized, stratum 4, reference is 127.127.1.1

nominal freq is 250.0000 Hz, actual freq is 250.0000 Hz, precision is 2**16

reference time is D683D0B0.3AEC524A (09:54:24.230 CST Fri Jan 17 2014)

clock offset is 0.0000 msec, root delay is 0.00 msec

root dispersion is 0.26 msec, peer dispersion is 0.24 msec

loopfilter state is 'CTRL' (Normal Controlled Loop), drift is 0.000000000 s/s

system poll interval is 16, last update was 0 sec ago.

SanAntonio-VG1#show ntp asso

SanAntonio-VG1#show ntp associations

  address         ref clock       st   when   poll reach  delay  offset   disp

*~127.127.1.1     .LOCL.           3     14     16   377  0.000   0.000  0.254

~192.43.244.18   .INIT.          16      -   1024     0  0.000   0.000 15937.

* sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured

SanAntonio-VG1#C0626B626AB4

Joaquin
Bronze

Re: Time Stamp on all the phones is wrong

On that Gateway you've got a reference for one of the pool.ntp.org servers (192.43.244.18) which has actually been taken out of the ntp server pool http://www.pool.ntp.org/scores/192.43.244.18

Check on the NIST for other addresses you can point to.

Gareth

New Member

Re: Time Stamp on all the phones is wrong

OK, now we're getting somewhere,

Thanks!

Joaquin

Re: Time Stamp on all the phones is wrong

Hi.
Because NTP is a key service for CUCM and all UC platforms, you cannot remove all ntp servers from CUCM.
The command to adjust time via cli is:
date (hh:mm:ss:MM:DD:YYYY)
But it will fail to run because the presence of an NTP Server.


HTH

Regards

Carlo

Sent from Cisco Technical Support iPhone App

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New Member

Re: Time Stamp on all the phones is wrong

Carlo,

Good to know thanks.

Joaquin
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