Troubleshooting "Account Not Registered" in Zoiper

If your Zoiper account shows Not Registered, this means the app cannot connect to the VoIP server.

Step 1: Check Internet Connection

Make sure your device is connected to:

• WiFi
  OR
• Mobile Data

Step 2: Verify SIP Details

Confirm the following details are correct:

• SIP Username
• SIP Password
• SIP Server Address

Even a small typing error will prevent connection.

Step 3: Restart the App

Close the Zoiper application completely and reopen it.

Step 4: Re-add the Account

Delete the SIP account and add it again using your correct credentials.

Step 5: Contact Support

If the issue continues, please submit a support ticket so our technical team can assist.