For the new users to Draytek SoftPhone, after finishing installation and launching the program for the first time, you can use the Auto-Provision feature.
After finishing installation, please connect your computer to IPPBX2820 or IPPBX 3510, and launch Draytek SoftPhone.
Click Yes, and Draytek Softphone will search for IPPBX servers within the subnet. You can choose a server IP in the list to log in.
Choose a server, and Draytek SoftPhone will ask you for Username and Password. Type both of them, and enjoy the IPPBX!