To install Linphone, visit the Google Play Store, or click here. After downloading and installing Linphone on your Android device, follow the simple configuration steps on the next page.
Step 2) Once loaded, Let’s Go.
Step 3) Select “ I Already Have a SIP Account”.
Username: your 7 digit virtual number
Password: your device password
Domain: your domain name
Touch the Apply button when all information has been entered.
Step 5) The Status will show “Registered” on the top right corner of Linphone.
Step 6) Now that your account has been added, start making calls!