[cisco-voip] CME 3.3 and 79xx phones with clock drift

[Ryan Ratliff]

The phones get the time from CCM.  Pretty much every time you make a  
call the time is updated from CCM to the phone so fix the drift on  
the CCM and you'll fix the phones.

-Ryan

On Oct 30, 2006, at 8:24 PM, Lawrence E. Bakst wrote:

Is there any way to prevent clock drift with 79xx phone under CME  
3.3? My CME router is synced to NTP so the router's time is correct,  
but after weeks or months of uptime the clocks on the phones drift. I  
am using SCCP but I found the following SIP bug:

CSCef38121: Cisco 79x0: NTP Clock drift on SIP Phones
Symptom: The Cisco 7940/7960 phones exhibit a clock drift issue
Workaround: A phone reset will restart the time clock.

Has this been fixed in any latter versions? Is it too much to ask  
that the phones would run NTP? It doesn't seem like they do.

I am running the following loads:
  load 7960-7940 P00306000500
  load 7920 cmterm_7920.4.0-02-01
  load 7970 TERM70.6-0-3SR1S

Best,

leb

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