Digium Asterisk Appliance 50 AA50 Administrator's Manual page 154

Appendix C: Asterisk Appliance 50 (AA50) License Agreement
c) Accompany the work with a written offer, valid for at least three years,
to give the same user the materials specified in Subsection 6a, above, for a
charge no more than the cost of performing this distribution.
d) If distribution of the work is made by offering access to copy from a
designated place, offer equivalent access to copy the above specified
materials from the same place.
e) Verify that the user has already received a copy of these materials or
that you have already sent this user a copy.
For an executable, the required form of the "work that uses the Library"
must include any data and utility programs needed for reproducing the
executable from it. However, as a special exception, the materials to be
distributed need not include anything that is normally distributed (in
either source or binary form) with the major components (compiler,
kernel, and so on) of the operating system on which the executable runs,
unless that component itself accompanies the executable.
It may happen that this requirement contradicts the license restrictions of
other proprietary libraries that do not normally accompany the operating
system. Such a contradiction means you cannot use both them and the
Library together in an executable that you distribute.
7. You may place library facilities that are a work based on the Library
side-by-side in a single library together with other library facilities not
covered by this License, and distribute such a combined library, provided
that the separate distribution of the work based on the Library and of the
other library facilities is otherwise permitted, and provided that you do
these two things:
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