A smart phone solution for your Smartphone. OpusTel is a phone app to make phone calls with a real phone number on your smartphone tap-proof, no roaming costs, very cheap and with excellent sound quality. Here's how it works.
The signaling and the conversations are encrypted. We are using SIPS, TLS and swisssign 256 certificates.
OpusTel users call each other for free, and non-users at very low landline rates.
You can make calls with excellent sound quality.
You have the option to select a top phone number, such as 0041 41 520 60 30.
You can use OpusTel as a second phone number. The OpusTel app can also replace the Skype App.
OpusTel is a Swiss mobile-phone solution, IT-equipment in Switzerland, operating under the Swiss Data Protection Act.
The OpusTel Phone App is globally used and supported on iPhone and Android. Please select your international phone number:
