Published Apr 18, 2024
The time on my Cisco phone is not correct
You must make some manual changes to your Cisco phone's configuration file (SIPDefault.cnf) in order to properly get the time from a network time server via NTP.
The following requires knowledge of the Linux OS and the command line!
Login to your system as root
Type: cd /tftpboot
Press the Enter key
Type: vi SIPDefault.cnf in order to begin editing the file using the VI text editor (Learn about VI)
Type: /sntp_mode
Press the Enter key
Change the word DirectedBroadcast to anycast
Press the ESC key
Type: :wq!
Reboot your Cisco phone
Your changes will be overwritten if you make any changes to the Extensions page within your Admin Panel. You will have to follow the steps above to reset the configuration option for NTP.
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