Unable to Purchase G.729 Annex a Codec (Jailbroken iPhone)

If you have a jailbroken iPhone (or other iOS device) and you get a message that mentions either 'test user account' or 'sandbox environment' you probably need to remove appsync and then reinstall Acrobits Softphone or Groundwire before you will be able to purchase the add on. Check out the link below for more information (different app, same issue).