SIP trunking with user name and password
Some VoIP providers support “SIP trunking” services, most of them require user name and password for authorization.
To work with such SIP trunking, we need configure “external lines” in miniSipServer to establish connection with the VoIP carriers’ server.
In the external line configuration, we can configure peer server address (or domain name) , user name and password for authorization of register process and call process.