How do I connect my Netcomm V300 to the engin network?

Overview
Step 1: Login to the V300
Step 2: SIP menu
Step 3:  SIP Proxy Information
Step 4: Authentication Details

You must download this firmware before connecting your V300 to the engin network otherwise you will have 30 second dropouts.
https://packetman.com.au/dms/out/out.ViewDocument.php?documentid=82

Step 1: Login to the V300
  1. Login to the V300 with your web browser http://192.168.30.1
  2. Enter the Username: admin, Password: admin to access the V300
Step 2: SIP menu
  1. Go to the SIP menu
  2. Go to Configuration
Step 3:  SIP Proxy Information
Step 4: Authentication Details