[Freeswitch-users] Codec negotiation with carriers
Anto
potxoka at gmail.com
Fri Mar 16 00:22:09 MSK 2012
Hi
If, upload a file to trace and explanation to this address
http://pastebin.freeswitch.org/18599
I do not want disturb watching this ;-), I prefer to use a system to
understand, this scenario and for future projects.
With everything I've read do not really understand what the codecs :-S
, but if I had been good to understand the rest of the operation of
FreeSWITCH (or so I think). Thanks !
Regards
Anto
2012/3/14 Michael Collins <msc at freeswitch.org>:
> Did you get sip traces and logs of working vs. non-working calls and put
> them on pastebin? Most likely there is an explanation but it will take some
> time and effort to figure it out.
>
> -MC
>
>
> On Wed, Mar 14, 2012 at 2:18 PM, Anto <potxoka at gmail.com> wrote:
>>
>> Hello
>>
>> I have searched previous messages in the list, I consulted the book of
>> FreeSWITCH (which I bought over a year), wiki and so on. I still do
>> not understand how and why in some cases I work. Also I downloaded
>> frontend to consult your code if there was something about this, but
>> still the same. I have several weeks with this question and I can not
>> find it. In the end I decided to spend the gateway to Asterisk, and
>> you at least understand its operation. Thank you very much to all :-)
>>
>> Best regards
>> Anto
>>
>> 2012/3/11 Anto <potxoka at gmail.com>:
>> > Hi
>> >
>> > I still do not find the solution and not really understanding, because
>> > it works:-S
>> >
>> > regards
>> > anto
>> >
>> > 2012/3/7 Anto <potxoka at gmail.com>:
>> >> Hello
>> >>
>> >> Attached file, with the traces of the different tests (with different
>> >> configurations).
>> >>
>> >> http://pastebin.freeswitch.org/18599
>> >>
>> >> I have read the url that you mentioned, the initial guide FreeSWITCH,
>> >> that of mod_sofia, applications, etc.. I believe that most of the wiki
>> >> (maybe when do not give the solution, read as much documentation is
>> >> worse idea :-S, lock me more).
>> >>
>> >> I made a configuration that works (I have not tested the audio), but
>> >> earlier (before I started "touch" the profiles) if I could talk to a
>> >> physical phone (several times). The problem is that I can not
>> >> understand why it works and sometimes not, and I would like to learn
>> >> :-). Not only do and forget, so I would like to learn and less
>> >> disturbing to the mail list and (maybe in the future) to help other
>> >> newbies like me :-). Thanks !
>> >>
>> >> Best regards
>> >> Anto
>> >>
>> >> 2012/3/7 Michael Collins <msc at freeswitch.org>:
>> >>> You may want to read up on codec negotiation:
>> >>> http://wiki.freeswitch.org/wiki/Codec_negotiation
>> >>>
>> >>> There are different ways to handle codecs depending on your needs. I'd
>> >>> read
>> >>> that page first and then try out some of the suggestions. If you're
>> >>> still
>> >>> having trouble then I'd recommend getting SIP traces of the traffic
>> >>> and
>> >>> putting them on pastebin.freeswitch.org. The gang here is pretty good
>> >>> at
>> >>> looking over logs and helping with diagnosing problems. :)
>> >>>
>> >>> -MC
>> >>>
>> >>> On Tue, Mar 6, 2012 at 2:30 PM, Anto <potxoka at gmail.com> wrote:
>> >>>>
>> >>>> Hi
>> >>>>
>> >>>> I am following the steps in this direction
>> >>>> "http://wiki.freeswitch.org/wiki/SBC_Setup" and
>> >>>> "http://wiki.freeswitch.org/wiki/Provider_Configuration:_Broadvoice",
>> >>>> I reread the whole entire wiki (or so I lack), but do not quite
>> >>>> assimilate or finding the right formula to operate the bridge :-S.
>> >>>>
>> >>>> I captured traffic with ngrep, I enabled sip-trace, console
>> >>>> logconsole
>> >>>> 8, etc., but unless the transcoding error (only two of the hundreds
>> >>>> of
>> >>>> combinations of settings that I have), I have not seen anything
>> >>>> "weird" :-S
>> >>>>
>> >>>> I have 3 suppliers, each with this codec:
>> >>>>
>> >>>> 1) 2) 3)
>> >>>> G729 G729 G729
>> >>>> G711u G711A G711A
>> >>>> G711A G711u G711u
>> >>>> G723 G723
>> >>>> G722
>> >>>> GSM
>> >>>>
>> >>>> I think I understand that when making an outside call, FreeSWITCH
>> >>>> follow these steps:
>> >>>>
>> >>>> USER -> ( Dialplan -> profile (internal) -> bridge (external) ->
>> >>>> profile (external) ) -> PROVIDER
>> >>>>
>> >>>> PROVIDER -> ( Dialplan -> profile (external) -> bridge (internal)
>> >>>> ->
>> >>>> profile (internal) ) -> USER
>> >>>>
>> >>>> right?
>> >>>>
>> >>>> Internal and external I set as follows (and not many changes have
>> >>>> done, and not remember it, because I've been testing days). If
>> >>>> outbound (outbound-codec-prefs) all codecs specified system does not
>> >>>> handle the call, I have to specify these by hand. If active
>> >>>> inbound-proxy-media, not the caller. Some of the time I worked, but
>> >>>> gave me an error that it can do transcoding G729 codec (I do
>> >>>> passthrough), but the proxy does not work half.
>> >>>>
>> >>>> If the outbound property (outbound-codec-prefs) all codecs specified
>> >>>> system does not handle the call, I have to specify these by hand. If
>> >>>> active inbound-proxy-media, not the caller. Some of the time I
>> >>>> worked,
>> >>>> but gave me an error that it can do transcoding G729 codec (I want to
>> >>>> make passthrough), but the "proxy media" does not work.
>> >>>>
>> >>>> Basically, what I do is that local users can use all the codecs
>> >>>> allowed (iLBC, GSM, ...) and make an outside call, use the carrier
>> >>>> that will indicate the priority but the free codec.
>> >>>>
>> >>>> With this configuration works for me, but I would like to understand
>> >>>> why so if it works and otherwise no. Coming to understand how to
>> >>>> configure properly and so as not to disturb the mail list ;-). Thanks
>> >>>> !
>> >>>>
>> >>>> Best regards
>> >>>> Anto
>> >>>>
>> >>>> vars.xml
>> >>>>
>> >>>> <X-PRE-PROCESS cmd="set"
>> >>>>
>> >>>>
>> >>>> data="global_codec_prefs=iLBC,G7221,speex,PCMU,PCMA,BV16,G726-32,GSM,G729,G723,AMR"/>
>> >>>> <X-PRE-PROCESS cmd="set"
>> >>>>
>> >>>>
>> >>>> data="carriers_codec_prefs=PCMU,PCMA,G729,G723,AMR,iLBC,G7221,speex,BV16,G726-32,GSM"/>
>> >>>>
>> >>>> internal.xml
>> >>>>
>> >>>> <param name="codec-prefs" value="$${global_codec_prefs}"/>
>> >>>> <!--param name="inbound-codec-prefs" value="$${global_codec_prefs}"/>
>> >>>> <param name="outbound-codec-prefs" value="$${global_codec_prefs}"/-->
>> >>>> <!--param name="inbound-codec-negotiation" value="generous"/-->
>> >>>> <param name="inbound-codec-negotiation" value="greedy"/>
>> >>>> <param name="inbound-late-negotiation" value="true"/>
>> >>>> <param name="renegotiate-codec-on-reinvite" value="true"/>
>> >>>> <!--param name="inbound-proxy-media" value="true"/-->
>> >>>>
>> >>>> external.xml
>> >>>>
>> >>>> <param name="codec-prefs" value="$${carriers_codec_prefs}"/>
>> >>>> <param name="inbound-codec-prefs" value="$${carriers_codec_prefs}"/>
>> >>>> <!--param name="outbound-codec-prefs"
>> >>>> value="$${carriers_codec_prefs}"/-->
>> >>>> <param name="outbound-codec-prefs" value="PCMU,PCMA,G729,G723"/>
>> >>>> <!--param name="inbound-codec-negotiation" value="generous"/-->
>> >>>> <param name="inbound-codec-negotiation" value="greedy"/>
>> >>>> <param name="inbound-late-negotiation" value="true"/>
>> >>>> <param name="renegotiate-codec-on-reinvite" value="true"/>
>> >>>> <!--param name="inbound-proxy-media" value="true"/-->
>> >>>>
>> >>>> dialplan/outbound.xml
>> >>>>
>> >>>> <include>
>> >>>> <context name="internal">
>> >>>> <extension name="outbound">
>> >>>> <condition field="destination_number"
>> >>>> expression="^(\d+)$">
>> >>>> <!--action application="set"
>> >>>> data="inherit_codec=true"/-->
>> >>>> <!--action application="set"
>> >>>> data="hangup_after_bridge=true"/-->
>> >>>> <!--action application="set"
>> >>>> data="proxy_media=true"/-->
>> >>>> <action application="bridge"
>> >>>> data="sofia/gateway/provider-2/$1"/>
>> >>>> </condition>
>> >>>> </extension>
>> >>>> </context>
>> >>>>
>> >>>>
>> >>>> _________________________________________________________________________
>> >>>> Professional FreeSWITCH Consulting Services:
>> >>>> consulting at freeswitch.org
>> >>>> http://www.freeswitchsolutions.com
>> >>>>
>> >>>>
>> >>>>
>> >>>>
>> >>>> Official FreeSWITCH Sites
>> >>>> http://www.freeswitch.org
>> >>>> http://wiki.freeswitch.org
>> >>>> http://www.cluecon.com
>> >>>>
>> >>>> FreeSWITCH-users mailing list
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>> >>>>
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>> >>>
>> >>>
>> >>>
>> >>>
>> >>> _________________________________________________________________________
>> >>> Professional FreeSWITCH Consulting Services:
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>> >>> http://www.freeswitchsolutions.com
>> >>>
>> >>>
>> >>>
>> >>>
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>> >>>
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>>
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>>
>>
>>
>>
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>>
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>
>
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
>
>
>
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