[asterisk-users] A Question about Management/Control Protocol Licensing

Steve Murphy murf at parsetree.com
Wed Dec 11 17:12:44 CST 2013

On Wed, Dec 11, 2013 at 3:29 PM, Matthew Jordan <mjordan at digium.com> wrote:

> On Wed, Dec 11, 2013 at 3:15 PM, Paul Belanger <
> paul.belanger at polybeacon.com> wrote:
>> On 13-12-11 03:15 PM, Steve Murphy wrote:
>>> I see the following paragraph in the Asterisk trunk LICENSE file:
>>> "In addition, Asterisk implements two management/control protocols: the
>>> Asterisk Manager Interface (AMI) and the Asterisk Gateway Interface
>>> (AGI). It is our belief that applications using these protocols to
>>> manage or control an Asterisk instance do not have to be licensed
>>> under the GPL or a compatible license, as we believe these protocols
>>> do not create a 'derivative work' as referred to in the GPL. However,
>>> should any court or other judiciary body find that these protocols do
>>> fall under the terms of the GPL, then we hereby grant you a license to
>>> use these protocols in combination with Asterisk in external
>>> applications licensed under any license you wish."
>>> This probably originated some years ago, and I wonder if Digium or the
>>> Asterisk
>>> community might consider adding the OTHER management/control protocols to
>>> this
>>> list: ARI, and the ExternalIVR interface.
>>> If not, it might be instructive to learn why!
>>>  Would also like to see this update to include ARI. We talked a little
>> about it at astridevcon, and I think it is likely an oversight.
> It isn't an oversight. It's on my ToDo list (and this item is an action
> item on the wiki as well). We had the Thanksgiving holiday; then I was out
> last week at AdhearsionConf (great conference!). The licensing file will
> get updated before 12 is released.
> As an aside, we also had conversations about it on the asterisk-app-dev
> list [1], where I responded that I would get answers to the licensing
> questions. Granted, it has been much longer than a week or two - mea culpa
> on a bad time estimate.
> [1]
> http://lists.digium.com/pipermail/asterisk-app-dev/2013-October/000127.html
> Matt
​Many thanks, Matt for this info!


Steve Murphy
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