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

Kevin P. Fleming kpfleming at digium.com
Thu Mar 8 10:46:31 CST 2012

On 03/08/2012 10:34 AM, Gavin Henry wrote:
>>> My question is someone (Digium) must have this working against Polycom
>>> (which is a requirement for this project) with commercial certs since
>>> that's their partner of choice?
>> I don't believe we've done any interop testing with Polycom phones since TLS
>> and SRTP support were added to Asterisk. Most (possibly all) of the interop
>> testing was done with Asterisk Business Edition, the last version of which
>> was based on Asterisk 1.4.
> 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 :-)

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.

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.

Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype: kpfleming
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at www.digium.com & www.asterisk.org

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