encryption - Encrypted VoIP communication using the integrated Android 2.3 SIP stack -

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i'm working on project have implement secure voip communication between android 2.3 (or higher) phones. connection established through kamailio server.

the requirement sip api provided android (since version 2.3) used (if possible).

i think biggest problem connection made classes in android.net.rtp package. these classes don't belong public api, therefore cannot extend these classes , make own changes them.

now question: still somehow possible establish encrypted connection using srtp (or zrtp matter)? , if so, how should approach that?

if not possible sip api android, alternative so?

thank in advance!

android.net.rtp public of android 3.1. if developing 3.1 or later can extend these, otherwise you'll need implement own.


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