[asterisk-users] Commercial SSL certs on Asterisk with Polycom phones for encrypted calls using TLS and SRTP?

Hans Witvliet asterisk at a-domani.nl
Thu Mar 8 12:44:20 CST 2012

On Thu, 2012-03-08 at 16:50 +0000, Gavin Henry wrote:
> >>
> >> Ah, this makes sense now. So as of today the status of TLS and SRTP in
> >> anything
> >> other than 1.4.X is unknown?
> >
> >
> > Umm... no :-)
> OK, sorry :-)
> > Asterisk 1.4 did not have support for SRTP or SIP/TLS. Thus, neither of
> > these were tested with Polycom phones the last time we did interop testing
> > with those phones.
> Ah, I forgot when it was added.
afaicr, it was in 1.6.2
> > The status of SIP/TLS and SRTP support in the Asterisk releases that have
> > them are not 'unknown'; they are there and expected to be working. I was
> > just pointing out that Digium has not specifically tested Polycom phones for
> > interop with these features, and certainly has not specifically tested usage
> > of TLS certificates issued by any particular CA.

btw, "commercial" certs are not so special.
Somewhere in the chain (root-ca), there is a self-signed cert.
You can make such chain yourself, 
root-ca -> sub-ca -> sub-ca and finally a server+client cert.
Or, you can get a free cert from cacert.org


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