FS to answer a call with ZRTP and do text-to-speech of SaS
Hi all, i would like to call from the product my company is going to release (www.privatewave.com, mobile voice encryption with ZRTP for Nokia, iPhone, Blackberry, Android) a FS extension and, without the ZRTP enrollment, having the extension to be answered negotiating ZRTP and playing with Text to Speech the SaS . Is this possible with current FS/ZRTP integration? Fabio
Fabio Pietrosanti (naif) <lists@infosecurity.ch> wrote:
Hi all,
i would like to call from the product my company is going to release (www.privatewave.com, mobile voice encryption with ZRTP for Nokia, iPhone, Blackberry, Android) a FS extension and, without the ZRTP enrollment, having the extension to be answered negotiating ZRTP and playing with Text to Speech the SaS .
Is this possible with current FS/ZRTP integration?
Possibly, but you'll have to deal with licencing issues first associated with the ZRTP library. It's under the GNU AGPLv3 licence, as I recall. ZRTP is negotiated whenever the RTP stream starts; there's no point delaying it. If there's no ZRTP support on the other end, it just continues as an unencrypted call.
On 01/04/10 11.47, Jason White wrote:
ZRTP is negotiated whenever the RTP stream starts; there's no point delaying it. If there's no ZRTP support on the other end, it just continues as an unencrypted call.
So if a call is ZRTP enabled FS automatically negotiate it. Is there already some prototype and/or support to extract the negotiated SaS and do a text to speech? I would like to arrange a "test echo service" that's ZRTP enabled. Fabio
Fabio Pietrosanti (naif) <lists@infosecurity.ch> wrote:
On 01/04/10 11.47, Jason White wrote:
ZRTP is negotiated whenever the RTP stream starts; there's no point delaying it. If there's no ZRTP support on the other end, it just continues as an unencrypted call.
So if a call is ZRTP enabled FS automatically negotiate it.
That's what ZRTP is designed to do.
Is there already some prototype and/or support to extract the negotiated SaS and do a text to speech?
The SAS is available in a variable - I can't remember the details now, and the text to speech should be easy at that point.
participants (2)
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Fabio Pietrosanti (naif)
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Jason White