G729 support

Andreti

New Member
Hi,
according to WCS specs , it doesn't support g729. I have a legal license for using G729 in any producto, is it possible to introduce this codec ? For sip calls it's widely used.

BR
 

Max

Administrator
Staff member
Hello
According this link sipro.com/G729.html
G.729 patents have been expired, and not expired part is royalty-free.
G.729 – IMPORTANT INFORMATION
As of January 1, 2017 the patent terms of most Licensed Patents under the G.729 Consortium have expired.
With regard to the unexpired Licensed Copyrights and Licensed Patents of the G.729 Consortium Patent License Agreement, the Licensors of the G.729 Consortium, namely Orange SA, Nippon Telegraph and Telephone Corporation and Université de Sherbrooke (“Licensors”) have agreed to license the same under the existing terms on a royalty-free basis starting January 1, 2017.
For current Licensees of the G.729 Consortium Patent License Agreement, no reports and no payments will be due for Licensed Products Sold or otherwise distributed as of January 1, 2017.
For other companies selling G.729 compliant products and that are not current Licensees of the G.729 Consortium, there is no need to execute a G.729 Consortium Patent License Agreement since Licensors have agreed to license the unexpired Licensed Copyrights and Licensed Patents of the G.729 Consortium Patent License Agreement under the existing terms on a royalty-free basis starting January 1, 2017.
So it seems you don't need a license to use G.729.
Anyway it should be supported in WCS and should be used in SDP. Please check.
Code:
v=0
o=Flashphoner 0 1488538831225 IN IP4 46.101.108.90
s=Flashphoner/1.0
c=IN IP4 46.101.108.90
t=0 0
m=audio 31126 RTP/AVP 111 8 0 18 100 9 101 103 104 106 105 13
c=IN IP4 46.101.108.90
a=rtpmap:111 opus/48000/2
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:100 speex/16000
a=rtpmap:9 G722/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=rtpmap:103 isac/16000
a=rtpmap:104 isac/32000
a=rtpmap:106 cn/32000
a=rtpmap:105 cn/16000
a=rtpmap:13 cn/8000
a=ptime:20
a=rtcp:31127 IN IP4 46.101.108.90
a=sendrecv
a=ssrc:575405846 cname:rtp/audio/9dc0d5b0-0000-11e7-af47-23624bc79915
By the way, what's the wide band that this code use in WCS?
G.729 has 8000 Hz sample rate.
 
Last edited:
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