On Aug 12, 2008, at 7:31 PM, Timothy McKee wrote: > Guy: > > Your assumptions are correct. The *only* case where a license is > required > is if transcoding occurs. Passing RTP packets or playing > prerecorded files > does not require a license. > > Tim McKee
Agreed, but the single practical *gotcha* is voicemail attachments, without transcoding there is no way to attach an audio file that email clients can deal with. If you can live without voicemail attachments, then a g729 centric, no- transcode, AstLinux system is quite feasible. Lonnie > > > > On 8/12/08 8:09 PM, "Guy Neale" <[EMAIL PROTECTED]> wrote: > >> This is really interesting, I'll always assumed that if g729 rtp >> audio is >> terminated to asterisk then a g729 license is required. >> >> >> >> Thinking about this would my assumption below be collect. >> >> >> >> In all the below scenarios I'm only interested in the g729 licensing >> associated to Asterisk, I'm assuming the connected device has the >> appropriated >> g729 implementation and licensing >> >> >> >> Scenarios >> >> 1. G729 RTP call is terminated to asterisk for AA or voicemail >> >> 1.1. Audio files are encoded in g729 format - no transcoding >> required, >> therefore no g729 licence is required >> >> 1.2. Audio files are encoded in g711 (alaw/ulaw) or GSM etc, - >> transcoding to >> g729 is required therefore a g729 license would be required >> >> 2. IAX2 trunk transits asterisk to another IAX2 trunk >> >> 1.1. Both trunks negotiate g729 therefore the audio RTP is passed >> through >> asterisk without transcoding, do we surmise that in this case no >> g729 licence >> is required? >> >> 1.2. One trunk negotiates g729 and the other g711, Asterisk would >> need to >> transcode the audio stream as the audio passes through Asterisk. I >> suspect we >> require a g729 licence to do the transcoding >> >> 3. SIP/IAX device talks to a TDM device (TDM channel driver >> installed in >> Asterisk) >> >> 1.1. SIP/IAX device negotiate g729 and is transcoded into PCM, >> would we >> surmise a g729 licensing is required? >> >> 4. A standard extn SIP to SIP call >> >> 1.1. SIP extns negotiate g729, the Audio RTP stream is peer to >> peer therefore >> asterisk doesn't care/get involved in the audio encoding, no >> asterisk g729 >> license require. >> >> >> ________________________________ >> >> From: [EMAIL PROTECTED] on behalf of >> Kristian >> Kielhofner >> Sent: Wed 13-Aug-08 3:59 AM >> To: [EMAIL PROTECTED]; AstLinux Users Mailing List >> Subject: Re: [Astlinux-users] Any news on a uClibc version of G.729 >> forAsterisk 1.4 >> >> >> >> We distribute those for two reasons: >> >> 1) We want to cut down on transcoding (if it's even possible for you >> to transcode G729) >> 2) We want you to be able to use G729 even without the G729 module >> >> Most people don't realize you can have a very functional Asterisk >> system using G729 without the G729 codec installed. All it takes >> is a >> little configuration. I haven't used a G729 codec on an AstLinux >> system in quite some time. >> >> -- >> Kristian Kielhofner >> http://blog.krisk.org <http://blog.krisk.org/> >> >> ------------------------------------------------------------------------- >> This SF.Net email is sponsored by the Moblin Your Move Developer's >> challenge >> Build the coolest Linux based applications with Moblin SDK & win >> great prizes >> Grand prize is a trip for two to an Open Source event anywhere in >> the world >> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> Astlinux-users mailing list >> Astlinux-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/astlinux-users >> >> Donations to support AstLinux are graciously accepted via PayPal to >> [EMAIL PROTECTED] >> >> >> ------------------------------------------------------------------------- >> This SF.Net email is sponsored by the Moblin Your Move Developer's >> challenge >> Build the coolest Linux based applications with Moblin SDK & win >> great prizes >> Grand prize is a trip for two to an Open Source event anywhere in >> the world >> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> Astlinux-users mailing list >> Astlinux-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/astlinux-users >> >> Donations to support AstLinux are graciously accepted via PayPal to >> [EMAIL PROTECTED] > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win > great prizes > Grand prize is a trip for two to an Open Source event anywhere in > the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/_______________________________________________ > Astlinux-users mailing list > Astlinux-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/astlinux-users > > Donations to support AstLinux are graciously accepted via PayPal to [EMAIL > PROTECTED] > . ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Astlinux-users mailing list Astlinux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to [EMAIL PROTECTED]
