Cannot Sync polycom vvx310 to pool server..or my own freepbx

I have tried a couple NTP pool servers and made and changed settings but so far, no luck in getting the vvx310 to Sync with the pool or other ntp servers. anyone have a Wiki to make these phones work with the freepbx ? Other option is to sync the phone time/date with the freepbx server but, there is no drop down option in the phone that can do this.

sounds like a DNS issue; try setting them to google’s DNS ( and Otherwise, it’s a firewall issue.