istarsip adds a second number to your iPhone, iPod touch, and iPad that works over 3G, WiFi or Cellular networks using the same number. It’s ideal when you want to reduce your mobile charges while traveling or calling overseas.

istarsip is the first native SIP/VoIP prepaid application in the Apple Store. All calls are made directly to StarView Solutions, no middle-man customized proxy involved, making the call quality excellent.

istarsip 3.0 now supports Apple's push notification service. You can receive the notification message about new incoming calls anywhere and you don’t need to run istarsip to wait for the incoming call.

Using a WiFi/3G connection turns your Phone or iPod touch 2nd Gen into a pocket VoIP phone - so you can make cheap or even free phone calls (local or long distance) over the internet anytime, anywhere.

• Professional grade
• Separate voicemail
• Dual-Mode (VoIP/Cellular)
• Call waiting/call transfer
• Low international rates
• Quick and easy setup
• Support speaker phone
• Voice mail notification
• Multiple ringtone selection
• Mute/hold call capability
• Redial from recent call list
• Shortcut to make regular calls
• Dial directly from iPhone's
  address book
• Support prefix dialing when
  calling from address book

Many of our customers use istarsip to turn their iPhone into their office phone extension, so they can use iPhone to make/receive phone calls over their company's phone system.