[Freeswitch-dev] question about codecs negotiation

Georgiewskiy Yuriy bottleman at icf.org.ru
Sat Oct 31 08:36:34 PDT 2009


On 2009-10-31 10:53 -0400, Michael Jerris wrote freeswitch-dev at lists.freesw...:


more other, if i have switch to t38 from h323 side, ok i construct sdp with it 
and pass to var for this call, how i can inform sip leg what it need 
renegotiate to t38?

MJ>your of course not going to be able to proxy media or bypass media  
MJ>with iax, it does not use rtp.
MJ>
MJ>
MJ>On Oct 31, 2009, at 10:37 AM, Georgiewskiy Yuriy wrote:
MJ>
MJ>> On 2009-10-31 10:24 -0400, Michael Jerris wrote freeswitch-dev at lists.freesw 
MJ>> ...:
MJ>>
MJ>> MJ>The only way to do this that I can think of easily is to convert  
MJ>> your
MJ>> MJ>codec data to an sdp string that can be set on the channel.
MJ>>
MJ>> it's not true way im my mind, there is another protocol endpoints,  
MJ>> for example iax,
MJ>> if call scheme like h323->fs->iax i need 2 differen converter one to  
MJ>> sip sdp and one
MJ>> to iax? i think clearer way to pass codecs to some kind of global  
MJ>> var for a call,
MJ>> and each ebdpoints module will take it from there and konvert in his  
MJ>> own format
MJ>> himself, any other ideas?
MJ>>
MJ>>
MJ>> MJ>Mike
MJ>> MJ>
MJ>> MJ>On Oct 31, 2009, at 8:57 AM, Georgiewskiy Yuriy wrote:
MJ>> MJ>
MJ>> MJ>>
MJ>> MJ>> Hi, i already post it in freeswitch-users but nobody reply, now  
MJ>> try
MJ>> MJ>> there.
MJ>> MJ>>
MJ>> MJ>> I have  questions about fs and not sip protocols,
MJ>> MJ>> call scheme like this - user1-sip->fs-sip->user2, as i see if  
MJ>> in sip
MJ>> MJ>> profile enable inbound-proxy-media SDP is goes
MJ>> MJ>> end-to-end if sip is on both call legs, if call goes throuch  
MJ>> another
MJ>> MJ>> protocol module, for example my mod_h323 (call scheme like  
MJ>> user1-sip-
MJ>> MJ>> >fs-h323->someH323Ep) there is no way to negotiate codec  
MJ>> because i
MJ>> MJ>> have no SDP from called party for example and have no way to  
MJ>> insert
MJ>> MJ>> it on sip leg, or i don't see this way?
MJ>> MJ>>
MJ>> MJ>> This issue slow down my development, especially t38 part  
MJ>> becouse i
MJ>> MJ>> don't known
MJ>> MJ>> how to resolve this in true way.
MJ>> MJ>>
MJ>> MJ>> C уважением                       With Best Regards
MJ>> MJ>> Георгиевский Юрий.                Georgiewskiy Yuriy
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MJ>> C уважением                       With Best Regards
MJ>> Георгиевский Юрий.                Georgiewskiy Yuriy
MJ>> +7 4872 711666                    +7 4872 711666
MJ>> факс +7 4872 711143               fax +7 4872 711143
MJ>> Компания ООО "Ай Ти Сервис"       IT Service Ltd
MJ>> http://nkoort.ru                  http://nkoort.ru
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C уважением                       With Best Regards
Георгиевский Юрий.                Georgiewskiy Yuriy
+7 4872 711666                    +7 4872 711666
факс +7 4872 711143               fax +7 4872 711143
Компания ООО "Ай Ти Сервис"       IT Service Ltd
http://nkoort.ru                  http://nkoort.ru
JID: GHhost at jabber.tula-ix.net.ru JID: GHhost at jabber.tula-ix.net.ru
YG129-RIPE                        YG129-RIPE


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