[Freeswitch-users] mod_com_g729 licences used even without transcoding

Jan Riedinger riedinger at sns.eu
Mon Oct 4 10:18:13 PDT 2010


  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 <mailto: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 <BLOCKED::http://www.ipeva.fr/>  - www.ipeva-studio.com 
> <BLOCKED::http://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 <mailto: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 <BLOCKED::http://www.ipeva.fr/>  - www.ipeva-studio.com 
>>> <BLOCKED::http://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 <mailto: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 <http://www.ipeva.fr>  - www.ipeva-studio.com 
>>>>>> <http://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 
>>>> <mailto:riedinger at sns.eu>
>>>> SNS Consult GmbH                        ICQ   :  163-237-041
>>>> Südwestkorso 49a                        MSN   : jan at sns-consult.de 
>>>> <mailto:jan at sns-consult.de>
>>>> 14197 Berlin GERMANY                    Skype :  Jan Riedinger
>>>>
>>>> AG Charlottenburg - HRB 71973
>>>>
>>>>
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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  <mailto:riedinger at sns.eu>
>> SNS Consult GmbH                        ICQ   :  163-237-041
>> Südwestkorso 49a                        MSN   :jan at sns-consult.de  <mailto:jan at sns-consult.de>
>> 14197 Berlin GERMANY                    Skype :  Jan Riedinger
>>
>> AG Charlottenburg - HRB 71973
>
>
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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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