Avaya Communicator Settings
To get into settings, click on the hamburger menu (three horizontal lines)
Server Settings:
Address: 10.112.112.38
Transport type: TCP (selecting this also sets the port number to 5060)
Domain: 10.112.112.38
Dialing Rules
Change 'Number to dial to access an outside line' to 7
Audio Settings
Use the dropdown selectors to pick the Microphone and Speaker to use with Communicator.