About NonPry

NonPry is a secure SIP-based VoIP application that enables you to communicate over the internet or to make calls to regular phone networks while preserving your privacy. NonPry uses SRTP-TLS in order to make your calls undecryptable and uninterceptable.

You can make FREE outside calls to more than 170 areas all over the world, mobile or landline, and to other NonPry users free of charge. You can also send FREE encrypted text messages to other NonPry users through a safe channel.

There is an option for requiring regular incoming phone numbers (DID) from numerous areas of the world, which will enable your partners to call you with local calling rates, no matter where you are located in the world.

If you value your privacy and you want to save money on your local and international calls, NonPry is the perfect app for you!

NonPry Private Phone System provides the most cost effective and complete phone service package, available with its highly secure calling service for businesses and private users.

To insure the privacy of your calls NonPry blocks the interception of users' conversations by applying the most advanced encryption and authentication technologies. When using NonPry Private Phone System, you can be sure that your calls cannot be decrypted or recorded, thus your calls will not be accessible to third parties.

Our team members have been providing communication services for over 15 years, so they understand what it takes to provide a quality product. Our new development is a secure communication system which also offers top quality prepaid calls at affordable rates, and even free calls to over 170 area worldwide. See our Calling Rates!


SDES - RFC 4568 (Session Description Protocol Security Descriptions) for Media Streams and is a way to negotiate the key for Secure Real-time Transport Protocol. The keys are transported in the SDP attachment of a SIP message. That means, the SIP transport layer must make sure that no-one else can see the attachment. This can be done by using TLS transport layer, or other methods like S/MIME. Using TLS assumes that the next hop in the SIP proxy chain can be trusted and it will take care about the security requirements of the request.