Editing the DHCP Option 160 cfg File

Admin can opt to edit the initial DHCP Options 160 cfg file. Choose the DHCP Option Configuration button if your phones are communicating with a DHCP server. A DHCP server is mandatory if the phones are behind a NAT, or when communicating with an SBC HTTP proxy.

To edit the DHCP Option 160 cfg File:
1. Open the DHCP Options Configuration page (Setup > Settings > DHCP Options Configuration).

2. Click the Edit cfg Template button.

3. Edit the DHCP option using the table below as reference.

Parameter

Description

Keep alive period

You can configure how often the phones generate a keep-alive trap towards Device Manager. Default: Every 60 minutes. It's advisable to configure a period that does not exceed an hour. The management system may incorrectly determine that the phone is disconnected if a period of more than an hour is configured.

Provisioning URL

Defines the URL (including IP address and port) of the provisioning server (OVOC server).

Provisioning Method

Defines the provisioning method, i.e., STATIC or Dynamic (DHCP). Do not change this setting. The setting must remain STATIC. If  not, the phone will continuously perform restarts.

Provisioning Configuration URL

Defines the URL of the location of the configuration files (including IP address and port) in the provisioning server (OVOC server).

Provisioning Firmware URL

Defines the URL of the location of the firmware files (including IP address and port) in the provisioning server (OVOC server).

User Name

Defines the user name for the REST API. Default: System. Later, each phone receives its own unique user name.

User Password

Encrypted. Defines the user password for the REST API. Default: System. Later, each phone receives its own unique user password.

You can always restore these settings to their defaults if necessary by clicking the Restore to default button in the DHCP Option Configuration dialog but it's advisable to leave these settings unchanged. The button is displayed only after the DHCP Option is changed.