Using Zoiper with Clearwater

These instructions detail how to configure the Zoiper Android/iOS SIP client to work against a Clearwater system.


  1. Download the application from the Play Store or iTunes.
  2. Once installed, go to Config -> Accounts -> Add account -> SIP
  3. Fill in the following details:
  • Account name: Clearwater
  • Host: the root domain of your Clearwater deployment
  • Username: your username, e.g. 6505551234
  • Password: password for this account
  • Authentication user: <username>@<server> e.g.
  1. Hit Save
  2. If your account was successfully enabled you should see a green tick notification
  3. Go back to the main Config menu and select Codecs
  4. Unselect everything except uLaw and aLaw.
  5. Hit Save
  6. You are now ready to make calls.

Known supported devices

  • Samsung Galaxy S3
  • Samsung Galaxy S2
  • Samsung Galaxy S4
  • Nexus One
  • Huawei G510
  • Huawei G610
  • Qmobile A8
  • HTC 1X
  • iPhone 4
  • iPhone 4S

Known unsupported devices

  • Galaxy Nexus (no media)