[Freeswitch-users] mod_com_g729 licences used even without transcoding

Anthony Minessale anthony.minessale at gmail.com
Mon Oct 4 14:43:48 PDT 2010 

yes

On Mon, Oct 4, 2010 at 4:29 PM, David Ponzone <david.ponzone at ipeva.fr> wrote:
> Tony,
> Shouldn't that 10 bytes be a 20 ?
> David Ponzone  Direction Technique
> email: david.ponzone at ipeva.fr
> tel:      01 74 03 18 97
> gsm:   06 66 98 76 34
> Service Client IPeva
> tel:      0811 46 26 26
> www.ipeva.fr  -   www.ipeva-studio.com
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>
>
>
> Le 04/10/2010 à 19:34, Anthony Minessale a écrit :
>
> because it's based on G.711 the original codec used.
>
> It's a balance of latency to packet len.
>
> G.729 is poorly packetized at 20ms with only 10 bytes per payload.
>
> We can do something to make it work the way you want, but then I
> refuse to care if you get jittery calls because you are sending the
> wrong ptime in both directions.
>
>
>
> On Mon, Oct 4, 2010 at 12:18 PM, Jan Riedinger <riedinger at sns.eu> wrote:
>
> I'm trying to do wholesale business with some dozen of interconnects. It's
>
> hopeless to force all customers/clients to use the same ptime - and I think
>
> there is no real reason to force them. I'm already happy, if they all offer
>
> the usage of g729 ;-). Often they pass through the calls themselves.
>
> BTW - I never understood, why 20 ms is the default frame size. In this way
>
> you have about 20 bytes payload and 40 bytes overhead for the TCP/IP header,
>
> which is a pretty bad ratio.
>
> BR
>
>     Jan
>
> Am 04.10.2010 18:56, schrieb David Ponzone:
>
> You could also check with your carrier why they dont accept the custom ptime
>
> you need, or normalize your customers' config.
>
> I have a nice extension I made that denies calls if ptime is not 20ms, with
>
> early-neg or late-neg:
>
>   <extension name="check-ptime" continue="true">
>
>     <condition field="${sip_use_codec_ptime}" expression="20"
>
> break="on-true"/>
>
>     <condition field="${ep_codec_string}" expression="@20i">
>
>       <anti-action application="respond" data="488"/>
>
>       <anti-action application="hangup" data="88"/>
>
>     </condition>
>
>   </extension>
>
> David Ponzone   Direction Technique
>
> email: david.ponzone at ipeva.fr
>
> tel:      01 74 03 18 97
>
> gsm:   06 66 98 76 34
>
> Service Client  IP eva
>
> tel:      0811 46 26 26
>
> www.ipeva.fr  -   www.ipeva-studio.com
>
> Ce message et toutes les pièces jointes sont confidentiels et établis à
>
> l'intention exclusive de ses destinataires. Toute utilisation ou diffusion
>
> non autorisée est interdite. Tout message électronique est susceptible
>
> d'altération. IPeva décline toute responsabilité au titre de ce message s'il
>
> a été altéré, déformé ou falsifié. Si vous n'êtes pas destinataire de ce
>
> message, merci de le détruire immédiatement et d'avertir l'expéditeur.
>
>
>
> Le 04/10/2010 à 18:11, Jan Riedinger a écrit :
>
> I think, it would be a could idea to make it configurable, if mod_com_g729
>
> shall decode/encode the stream to re-packetize. With the current behaviour
>
> its usage is  too expensive for me in respect of money needed for licences
>
> and CPU power. Most of my calls are calls are g729 to g729, transcodeding is
>
> needed only very rare.
>
>
>
> Am 04.10.2010 17:46, schrieb David Ponzone:
>
> I just discovered a situation like that.
>
> If the ptime of leg A and leg B does not match, FS will decode/encode the
>
> stream in order to re-packetize (despite the fact that mod_com_g729 is
>
> capable to re-packetize even without any license installed).
>
> I was thinking that it was not optimal, but Anthony explained some minutes
>
> ago on #freeswitch why this was the preferred behaviour, despite the quality
>
> loss it causes.
>
> David Ponzone   Direction Technique
>
> email: david.ponzone at ipeva.fr
>
> tel:      01 74 03 18 97
>
> gsm:   06 66 98 76 34
>
> Service Client  IP eva
>
> tel:      0811 46 26 26
>
> www.ipeva.fr  -   www.ipeva-studio.com
>
> Ce message et toutes les pièces jointes sont confidentiels et établis à
>
> l'intention exclusive de ses destinataires. Toute utilisation ou diffusion
>
> non autorisée est interdite. Tout message électronique est susceptible
>
> d'altération. IPeva décline toute responsabilité au titre de ce message s'il
>
> a été altéré, déformé ou falsifié. Si vous n'êtes pas destinataire de ce
>
> message, merci de le détruire immédiatement et d'avertir l'expéditeur.
>
>
>
> Le 04/10/2010 à 17:20, Jan Riedinger a écrit :
>
>  Using http://files.freeswitch.org/g729/fsg729-158-installer really did
>
> fix the issue described below.
>
> However, it seems that the licence is used (up), even if there is no
>
> transcoding needed. In my CDR I find for all calls, for which G729 is
>
> involed at all,
>
> read_codec="G729", read_rate="8000", write_codec="G729", write_rate="8000"
>
> Nevertheless, all of these calls use a G729 licence. Is there any way to
>
> find out, why mod_com_g729 wants to do any kind of transcoding?
>
> BR
>
>     Jan
>
> now the cod
>
> Am 04.10.2010 15:15, schrieb Brian West:
>
> http://files.freeswitch.org/g729/fsg729-158-installer
>
> Just the CDN doesn't have the index updated yet.  That will fix your issue.
>
> /b
>
> On Oct 4, 2010, at 8:09 AM, David Ponzone wrote:
>
> Nope, you have to install them manually.
>
> Current is v158.
>
> You can download it from the same place than 153, but via direct URL only.
>
> It's still Beta I think.
>
> David Ponzone  Direction Technique
>
> email: david.ponzone at ipeva.fr
>
> tel:      01 74 03 18 97
>
> gsm:   06 66 98 76 34
>
> Service Client IPeva
>
> tel:      0811 46 26 26
>
> www.ipeva.fr  -   www.ipeva-studio.com
>
> Ce message et toutes les pièces jointes sont confidentiels et établis à
>
> l'intention exclusive de ses destinataires. Toute utilisation ou diffusion
>
> non autorisée est interdite. Tout message électronique est susceptible
>
> d'altération. IPeva décline toute responsabilité au titre de ce message s'il
>
> a été altéré, déformé ou falsifié. Si vous n'êtes pas destinataire de ce
>
> message, merci de le détruire immédiatement et d'avertir l'expéditeur.
>
>
>
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> --
>
> Jan Riedinger                           Phone :  +49-30-39 73 19 66
>
> Dipl.-Inf. | Managing Director          Fax   :  +49-30-39 73 19 64
>
>                                         E-Mail:  riedinger at sns.eu
>
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>
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>
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> --
>
> Jan Riedinger                           Phone :  +49-30-39 73 19 66
>
> Dipl.-Inf. | Managing Director          Fax   :  +49-30-39 73 19 64
>
>                                        E-Mail:  riedinger at sns.eu
>
> SNS Consult GmbH                        ICQ   :  163-237-041
>
> Südwestkorso 49a                        MSN   :  jan at sns-consult.de
>
> 14197 Berlin GERMANY                    Skype :  Jan Riedinger
>
> AG Charlottenburg - HRB 71973
>
>
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>
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> --
>
> Jan Riedinger                           Phone :  +49-30-39 73 19 66
>
> Dipl.-Inf. | Managing Director          Fax   :  +49-30-39 73 19 64
>
>                                        E-Mail:  riedinger at sns.eu
>
> SNS Consult GmbH                        ICQ   :  163-237-041
>
> Südwestkorso 49a                        MSN   :  jan at sns-consult.de
>
> 14197 Berlin GERMANY                    Skype :  Jan Riedinger
>
> AG Charlottenburg - HRB 71973
>
> _______________________________________________
>
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> --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
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-- 
Anthony Minessale II

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