Network Interface

Default = eth0.

A list of available network interfaces on the Server. It is recommended to use the same network interface selected at IP Office configuration.

Local IP Address

Default = IP address of default network interface.

A read-only field to show the IP address of the selected network interface.

Gateway Listen Port

Default = 42004.

The local listen port used by the WebRTC Gateway to accept SIP connections.

SIP Trunk Listen Port

Default = 42008.

Local listen port used by WebRTC Gateway to accept SIP trunk connections.

Logging Level

Default = Info.

Available log levels for the WebRTC Gateway. Changing the log level causes the WebRTC Gateway to restart.

The options are

• Error

• Warn

• Info

• Debug

• Trace

Allow Origins

Default = *

Type the Domain names and IP addresses you want IP Office to accept connections from. If there are more than one entry, separate the entries by a semicolon (;). These Domain names and IP addresses are added to the WebRTC Gateway’s CORS filter. WebRTC Gateway accepts WebSocket connections only from the Domain names and IP addresses whitelisted in the field. The Gateway maintains a list of Domain names and IP addresses to comply with Cross-Origin Resource Sharing (CORS) that enables cross-domain requests from Web browsers to servers and Web APIs. The * in this field allows connections from all Domains and IP addresses including Chrome extensions.

Example: “203.0.113.56”; “203.0.113.57”; “*.example.com”

If the above values entered in the field, connections from the IP addresses 203.0.113.56, 203.0.113.57, and any domains ending with example.com is allowed.