From BrekekeWiki

ITSP (Internet Telephony Service Provider)

Follow the guide below as your needs when using listed ITSP.

Brekeke SIP Server Config Settings

When Brekeke SIP Server is behind a router, do the following settings:

1. [Configuration]>[System]>[Network]>[Interface address1]: Global IP address of Broadband router
2. Set the port forwarding at router side

Notes for Dial Plan or ARS settings

• Here we did not specify any priority settings. Please set your priorities according to your needs, remembering that lower number hold a higher priority.
• The Dial Plans, set for each ITSP, allows calls from the ITSP line to pass through without authentication from Brekeke SIP Server. When INVITE authentication is turned off at [Config] menu in Brekeke SIP Server, the Dial Plan setting for each ITSP can be omitted.
• Note that you may need to update Dial Plan rules that include ITSP’s SIP Server IP address. ITSP may change their Server’s IP address at any time.
• In the following ITSP guide, [RTP relay] is set for "on(G.711 u only)" in ARS deploy pattern setting. In some cases, setting [RTP relay] = "off" may work; however, we have not tested all of the applicable environments.