[Asterisk-Users] License and Commercial Use

[Kevin Walsh]

Nicholas Bachmann [asterisk at not-real.org] wrote:
> Miroslav Nachev wrote:
> > I can't find anywhere on the Asterisk web the license terms for
> > commercial use of Asterisk software. Do I have to pay something
> > (and how much) if I want to use the Asterisk in our IP PBX solutions?
> > 
> > From a README:
> * LICENSING
>   Asterisk is distributed under GNU General Public License.  The GPL also
> must apply to all loadable modules as well, except as defined below.
> 
>   Digium, Inc. (formerly Linux Support Services) retains copyright to all
> of the core Asterisk system, and therefore can grant, at its sole
> discretion, the ability for companies, individuals, or organizations to
> create proprietary or Open Source (but non-GPL'd) modules which may be
> dynamically linked at runtime with the portions of Asterisk which fall
> under our copyright umbrella, or are distributed under more flexible
> licenses than GPL. 
> 
>   If you wish to use our code in other GPL programs, don't worry -- there
> is no requirement that you provide the same exemption in your GPL'd
> products (although if you've written a module for Asterisk we would
> strongly encourage you to make the same exemption that we do).
> 
As he said, the non-GPL licensing terms are not published.  I imagine
that means that they are negotiated on a case-by-case basis.

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