Russell Bryant has posted details of SIP TCP/TLS support ready for testing in Asterisk:
Brett Bryant has been working as an intern here at Digium for the Summer. After completing his updates to Mantis, he has been working on various Asterisk bugs and new features. One of these has been working on TCP and TLS support for SIP. I think that there is still some work to be done to get the client side of TLS working, but it's close. The TCP part appears to be working well in our tests here. Also, accepting TLS connections should be working, as well. I'd like to invite anyone interested to take a look and test it out.
$ svn co http://svn.digium.com/svn/asterisk/team/bbryant/sip-tcptls
Please send any feedback to this mailing list.
Here is a quick reference to the configuration changes. All of these are in configs/sip.conf.sample, as well.
To enable listening for TCP connections, there are 3 options in the general section: tcpenable, tcpbindaddr, and tcpbindport.
To enable listening for TLS connections, there are 4 options in the general section: tlsenable, tlsbindaddr, tlsbindport, and tlscertfile.
To specify a transport to be used for a registration, it is specified at the beginning of the register statement. For example:
register => tcp://russell:password@digium.com/1234
To specify a transport to use when connecting to a peer, you can put the "transport" option in a peer section. For example, "transport=tcp".
--
Russell Bryant
Software Engineer
Digium, Inc.
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Original Content (C) 2004-2010
Matt Riddell

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