On Wed, Jul 21, 2010 at 12:23 PM, Steve Underwood <steveu@coppice.org> wrote:
Don't they have G.723.1 support? If not, that's a sad omission. Quite a few people need that, and only the Digium card has been able to offer it in a properly licenced manner.
Sadly (and surprisingly) no. At least the specs don't claim it: http://www.sangoma.com/products/hardware_products/transcoding.html
There is no practical way to licence the patents for GSM-EFR, AMR -NB or AMR-WB for small to medium volume use. Sangoma get their licencing through the silicon they use. Same for Digium with their G.729 + G.723.1 card licencing. Licencing through the silicon also gets G.729 patent licencing at much lower prices than the way Digium, Freeswitch and Howler need to licence the same patents for their purely software products. Its all rather messy, really.
I figured this was due to some legal thing :). -- Kristian Kielhofner http://www.astlinux.org http://blog.krisk.org http://www.star2star.com http://www.submityoursip.com http://www.voalte.com