Overview
Step 1: Login to your Optus Supplied Speedstream 4200
- Start your web browser and type the private IP address of the Router in the URL field: 10.1.1.1
- After connecting to the device, you will be prompted to enter username and password. By default, the username is admin and the password is admin.
Step 2: Setup Port forwarding Rule
- Go to Setup > Port Forwarding
- Select Protocol UDP
- Enter UDP port: 5070 and end port 5071
- Redirect the service to your voice IP address.
Step 3: Change SIP ports for LINE1 tab
- Go to Voice ->admin->advanced
- Go to LINE1
- Go SIP settings heading
- Enter SIP port 5070
- Enter SIP EXT port 5070

Step 4: Change SIP ports for PSTN tab
- Go to PSTN
- Go to SIP settings heading
- Enter SIP port 5071
- Enter SIP EXT port 5071
