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

Paul Belanger paul.belanger at polybeacon.com
Wed Dec 11 15:15:12 CST 2013

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.

Paul Belanger | PolyBeacon, Inc.
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