Step 1: Download the firmware
Download the Dynalink RTA100+ or RTA100 Firmware from the following website address.
Step 2: Login to the Dynalink RTA 100+ or RTA100
- Login to the Dynalink RTA modem via the following URL: http://192.168.1.1
- Enter the username: root and password: root
Step 3: Update the firmware
- Go to Admin > Local Image Upgrade
- Browse for the firmware you saved on your desktop
- Upload the file into your modem


Step 4: Start Windows CMD
- Go to Start menu
- Click run. Type "cmd" in lowercase and then press [enter]

Step 5: Configure your modem for VoIP
- A black Dialog box will appear
- Type "telnet 192.168.1.1 " and then press [enter]
- Type "delete alg port portno 5060 " and then press [enter]
- Type "exit " and then press [enter]
