IDD/ISD Prefix Dialer will help you to make international calls with the various IDD/ISD Plan. No need to add Prefix number/Access Number manually. Just save the phone number with + or isd code. you make calls easily. Steps: 1. Go to settings, choose the plan name (configure first time only) 2. Call Screen - type the mobile number / click contacts icon to choose the phone number from contacts. 3. Press Call Button to connect the call. Features (screens) : Settings (menu->settings):