Hello,

for phones that are using tls, you can do the following tests:

  - for incoming traffic: proto==TLS
  - for outgoing traffic: after lookup location, the R-URI ($ru) should have 'transport=tls'

For RTPEngine there are some flags to specify you want or not SDES SRTP, I used them few times in the past, but I don't recall them by heart -- the docs should have them.

Cheers,
Daniel

Hello,

We're configuring Kamailio 4.2 with rtpengine to act as a midpoint between a telephone using TLS/SRTP and Asterisk. There are examples out there for TLS/SRTP with WebRTC, but we're using a plain hard phone, not WebRTC.

Would anyone be able to point us towards a Kamaiio configuration which:

a) Tests if the destination phone (stored using usrloc) uses TLS.

b) Sends RTP for calls to a TLS phone to rtpengine to be encrypted. We can assume all phones using TLS want to use SRTP.

Thanks very much in advance.

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David Cunningham, Voisonics Limited
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