Digium - licenses

Digium is the creator, sponsor, and innovative force behind Asterisk, the world's most popular open source telephony software. Digium offers Asterisk software free to the open source community and offers Asterisk Business Edition and Switchvox IP PBX software to power a broad family of products for small, medium and large businesses.
Asterisk G.729 License
Digium - Asterisk G.729 License
Asterisk HPEC License
Digium - Asterisk HPEC License
Asterisk Fax License
Digium - Asterisk Fax License