Download the softphone installer from the official website using the link. Install it following the instructions of the installer.
Launch the installed softphone. You will see the following window. It prompts you to enter login and password.
3. Login into Zoiper
login - <extension number>@<PBX Address>
password - internal number password.
Go to the PBX web interface.
Go to the employees section, select the desired internal number and copy the necessary data.
Click Login.
4. On the offer Fill In your hostname and select provider from the list, make sure that the address of your PBX is inserted in the field and click Next.
On the option Authentication and Outbound proxy without cocking the checkbox, click Skip.
On the configuration testing page, without waiting for the end, click Next. Agree to the warning.
Successful authorization is indicated by a green flag to the left of the current account.
Also, the status Online should be displayed on the PBX for this internal number.