Search Results

We have found 10 items matching your search query.

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Secure Voice

Mobile voice app. Uses the ZRTP protocol. Changes encryption key after each call. Android only.
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CSipSimple

SIP app for Android. Secure calls with TLS transport for SIP and SRTP or ZRTP for media.
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Phoner

SIP app for Windows. Secure calls use SRTP or ZRTP.
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PrivateWave

Voice apps for mobile devices. Features security compliance with FIPS, NIST and NSA.
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Twinkle

Voice app for Linux. Features standard ZRTP and SRTP encryption protocols .
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Kryptotel

Voice app for mobile. Features texting and video.
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Zfone

Plugin to make VOIP apps secure using the ZRTP protocol. SDK available for developers.
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Silent Phone

Mobile VOIP software and hardware. Features messaging and file transfer. Silent Phone was sold to Office Tone in August 2018.
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Acrobits

Provider of branded VOIP/SIP software to corporations and telecom companies that operates independently or with a PBX. Software supports ZRTP and SRTP.
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Linphone

SIP app for mobile and desktop. Supports SRTP and ZRTP. Free.