Start by download the application -https://www.zoiper.com/en/voip-softphone/download/zoiper3
Once application is installed on your PC launch application click on >Settings>Create New Account.
Account Type:SIP > Next
User/User@Host: (User is your extensions number)(Host is your vpl***.govoiply.com)
Password: Extension Password
Next Screen Account Name is Customer Preference
You'll need to adjust some settings for account to work properly. Once Account is loaded go to >Settings>Account Preferences>Advanced
Adjust Registration Timeout and Keep Alive time-out to default
Some additional Troubleshooting depending on your network settings. You can adjust the transport protocol from TCP to UDP. Helps with registration on certain networks.
Any questions start a live chat via www.voiply.com