hello all, i have problem in using g729 codec. my asterisk version is 1.8.22. when i run "core show codecs" in asterisk, there is a g729 codec in the list so i assume that i can use it for my channels. but connection can not be set when i use it for my h323 channel. i read somewhere that codec g729 is a commercial codec and i should buy its license in order to use it. is it true? if yes, why is it listed in codecs in asterisk?? thanks in advance, SAM -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20131001/bbd716ba/attachment.html>
Dominik George
2013-Oct-01 07:05 UTC
[asterisk-users] is g729 codec free? or under license???
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 s m <sam.gh1986 at gmail.com> schrieb:>hello all, >i have problem in using g729 codec. my asterisk version is 1.8.22. when >i >run "core show codecs" in asterisk, there is a g729 codec in the list >so i >assume that i can use it for my channels. but connection can not be set >when i use it for my h323 channel. > >i read somewhere that codec g729 is a commercial codec and i should buy >its >license in order to use it. is it true? if yes, why is it listed in >codecs >in asterisk?? > >thanks in advance, >SAM > > >------------------------------------------------------------------------ > >-- >_____________________________________________________________________ >-- Bandwidth and Colocation Provided by http://www.api-digital.com -- >New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > >asterisk-users mailing list >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-usersHi, Asterisk has a free codec for g729, but it can only pass through g729 channels. If you need to translate from/to g729, you need a license from Digium. On a side note, "free or under license" is nonsense. Free software also has a license; you always need a license to use software - some copyright holders just do not make you pay for it and do not limit your rights (a concept called public domain does not exist globally). - -nik - -- Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet. -----BEGIN PGP SIGNATURE----- Version: APG v1.0.8-fdroid iQFNBAEBCgA3BQJSSnRBMBxEb21pbmlrIEdlb3JnZSAobW9iaWxlIGtleSkgPG5p a0BuYXR1cmFsbmV0LmRlPgAKCRAvLbGk0zMOJXFJB/9PNVAlAjmPbFN2vGNfzS4r SAIZHfrVWmflxBGFAbVnZriN3Tvw2+haS0/8qV+rRhaK+IdqrF8Jb491a20NPTLu H87tRNTytXwJ94ngWyvTVWbPtqaWuEi8rle40VeYo9qv2xXx5XqFDCeWaTUDol/H 4BXXh4+bnmmKrud9K3gtbFx9hyeKdzcYHjv6WyHjRcQo8lTrOvloR7Pbqk38lIf2 MxFB1E5CKJPmq340xcS80N2K5PS9RFtQlUKDO2r9YaAl3CYz0VRUKC63cLo0Rsdk CBvehGTi85c85qdDXCVKRPUcUWQMDqpNgSRrXifPj6laWb/hciNRweEDf6ATzb8z =k0HG -----END PGP SIGNATURE-----
Bryant Zimmerman
2013-Oct-02 13:55 UTC
[asterisk-users] is g729 codec free? or under license???
When calling between two g729 client endpoints you do not need any licenses as long as no audio prompts or voicemail is evolved. Also as a sip trunk provider we offer g729 as a source and destination codec this allows you to make calls in and out using g729 (most carrier grade providers offer this option) You really only need to buy the number of g729 licenses that you will need for callers that require simultaneous transcoding. This is when a callers stream in or out will need to be converted to another codec format. This occurs when callers are jumping from say g729 to g711 or g729 to g722, g729 to gsm. If you plan things right and make sure any audio prompts your system is using are recorded in g729 as well as g711 and g722 you will reduce the number of g729 license considerable. Process that use a lot of g729 transcodes. ConfBridge uses g722 so all g729 has to be converted to and from g722 so 10 g729 callers to a confbridge would likely require 10 codecs (**See confbridge trick below). If you have prompts that are not pre-encoded in g729 those would use a transcoder license while playing. Voicemail would require a license as g729 has to be transcoded to one of the storage formats. The real number is based on how you are using your system. ConfBridge Trick - Have seen this used for voicemail as well, Make sure you test when using this method. If you can live with using higher bandwidth to the asterisk switch when using confbridges (endpoints also have to support in call reinvites correctly) you can force endpoints to re-invite to g722 before dropping into the conference bridge. This has the upside of not needing to transcode on the server thus improving performance and reducing g729 license requirements. This comes at the cost of needing higher bandwidth between the client endpoints and the phone. Figure about double the bandwidth when using this method. It may or may not be worth it to you depending on your scenario. Please let us know if this information helps you. Thanks Bryant Zimmerman Sr. Systems Architect Grand Dial Communications , A ZK Tech Inc. Company 616-299-5607 (mobile) 616-855-1030 Ext. 2003 (office) ---------------------------------------- From: "Don Kelly" <dk at donkelly.biz> Sent: Wednesday, October 2, 2013 9:30 AM To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users at lists.digium.com> Subject: Re: [asterisk-users] is g729 codec free? or under license??? In your scenario, all the calls are from endpoints on 181 to endpoints on 183. If the endpoint devices are similar, it seems to me that there should be no need to transcode-you can use a codec common to the endpoints. 729 would not be required. --Don From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of s m Sent: Wednesday, October 02, 2013 2:34 AM To: Dominik George Cc: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] is g729 codec free? or under license??? thank you Dominik you help me a lot. and the last question is how many license key should i buy? i read that license for g729 is per-channel but i don't understand what channel exactly means here. this is my scenario : 10endpoints....pbx181...pbx182...pbx183...10endpoints pbx181 and pbx183 has 10 endpoints connected to them. the call between these endpoints are established by pbx182. if i want to buy a license for pbx182, how many license key do i need? just one because i have just one connection on it? or two, because two trunks is defined on it? or as many as endpoints which are connected to each other via pbx182? please help me to clarify channel concept in my mind. thanks in advance SAM On Tue, Oct 1, 2013 at 11:34 AM, Dominik George <nik at naturalnet.de> wrote: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi,>about g729, you mean if it get free g729 and all my systems (PBXs and >routers) use g729 codec for setting a call, call is set without any >problem?Yes, if all systems use g729 directly, you are ready to go. - -nik -----BEGIN PGP SIGNATURE----- Version: APG v1.0.8-fdroid iQFMBAEBCgA3BQJSSoHxMBxEb21pbmlrIEdlb3JnZSAobW9iaWxlIGtleSkgPG5p a0BuYXR1cmFsbmV0LmRlPgAKCRAvLbGk0zMOJYmRB/USyTbAqhAsnFZSGGjIcLK7 uQ3nsVNGcmE18LaBN/XFicwp5UjVB5Euju+fjKu1FhqAzECsAPMup/1JUytikmYz +32wV5YL1SNKMA/ddi/zvVa9qIbKA9yP1HuBilpD+W0DO3hdnzr2xrdR1S2z5PGZ pnYWsVlXbWYEslOuK1oaMqINoxWbsQulwQi86GPTCwPtZmhcLrvBm1sDFxWb/oPP lsPy33ZH5BeQ/XEf6nWfoiEu4Hk2S0brCH74zsz9uD6PKL1CFdLcpWv/4k5M+Mly At2PC+leZZ/TX3VNqbasslQkyv/QLZIQVtG0qQ7DGflnkrzNi5/pNV7CVT5sdPQ=5rja -----END PGP SIGNATURE----- -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20131002/3f27718a/attachment-0001.html>