SPA303 IP phone clock settings default to factory setting at every provisioning reset. How to avoid?

[Ed Jennings]

My Cisco IP phone defaults to factory set time at each provisioning reset requiring me to manually reset time to current.  How do I change settings to avoid this?  I can't find a configuration setting for this.

edit:  actually, it appears that the time reset was associated with power interruptions, not SIP provisioning.

[Ed Jennings]

I made an uninformed change: I went to

Optional Network Configuration:
DNS Server Order- DHCP, Manual  (originally was Manual)

Primary NTP Server: time.windows.com  (originally was blank)

... and hit submit.  I will not know if this made my correction or not until another power interruption, but the time continues to show correctly, so nothing bad has happened (I hope).

[Mohammed al Baqari]

Do you configure ntp server in your CME?