iPhone
1. From the Contacts tab, select a contact and tap the Phone Handset Icon
2. From the Conversations tab, select a Conversation and tap the Phone Handset Icon
3. From the Keypad tab, enter the US phone number you are trying to call and tap the Phone Handset Icon
Android
1. From the Contacts tab, select a contact and tap the Phone Handset Icon
2. From the Conversations tab, select a Conversation and tap the Phone Handset Icon
3. From the Dialer tab, enter the US phone number and tap the Phone Handset Icon
If you are still unable to make a phone call, contact support@getflyp.com.