[Asterisk-Users] Polycom IP600 - Flashing clock and date?

[Chris Mason]

Don't put any SNTP entry in the MAC-phone.cfg file.

Make sure the ntp server is configured to allow external access.

restrict 192.168.0.0 mask 255.255.255.0 notrust nomodify notrap

Config /etc/dhcpd.conf file

#
# 192.168.0.0/255.255.255.0 Scope Settings
#
subnet 192.168.0.0 netmask 255.255.255.0 {

        # Range of DHCP assigned addresses for this scope
        range                           192.168.0.100 192.168.0.199;
        # 1 day
        default-lease-time              86400;
        # 2 days
        max-lease-time                  172800;

        # Configure the client's default Gateway:
        option subnet-mask              255.255.255.0;
        option broadcast-address        192.168.0.255;
        option routers                  192.168.0.1;
        
        # Configure the client's DNS settings:
        option domain-name              "mason.home";
        option domain-name-servers      192.168.0.3;
        option ntp-servers              192.168.0.3;
        option routers                  192.168.0.1;
        option tftp-server-name         "192.168.0.1";
        option time-offset              -14400;
   
        # If you want the client to be configured to also use
        # a WINS server:
        option netbios-name-servers     192.168.0.3;
        option netbios-node-type        8;
   
}  
~