TrixBox Phone system

I have a about 20 IP phones that connect to a TrixBox CentOS box that handles the VOIP. The time and date on the phones is always off and has never worked. The phones should auto update from the web but do not.
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Gerwin Jansen, EE MVETopic Advisor Commented:
>> The phones
What kind (brand/type) phones are they?

Is the time correct on your CentOS machine?
supermannikoAuthor Commented:
We have a mixer of phones.

Polycoms Models: IP 301 SIP, IP 335

Astra 6757i
Gerwin Jansen, EE MVETopic Advisor Commented:
OK and what about:

>>Is the time correct on your CentOS machine?
supermannikoAuthor Commented:
Yes it is.
Try this.

On centos CLI

Type ntpdate and check if the server is sycing to any NTP server.

if not then

type service ntpd stop

ntpdate (wait and check if server find a ntp server) (if server fails to find NTP server check your firewall and allow UDP 123 outbound for Trixbox IP only)

if server find the ntp server then type
service ntpd start

wait for sometime polycom phones should auto update time.

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