Zrtp iPhone Apps

Discover best Zrtp iPhone softwares, apps and websites.

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Zoiper

Freemium

Zoiper is an easy to use sip video softphone, with excellent voice quality and easy to setup.

Linphone

Open Source

Linphone is a free voice over IP (VoIP) service and SIP client.

Signal

Open Source

Signal is the most scalable encryption tool.