[Spce-user] Remove SDP media-level attribute - direction

[Imanol Pardavila]

Hi Andreas,
Looking at my traces I'm sure that endpoints aren't sending this 
attribute; I've just filtered the first packet with this line on SDP 
body and it's been sent by CE.

  * SDP sent from our SBC to CE:

         Session Description Protocol
             Session Description Protocol Version (v): 0
             Owner/Creator, Session Id (o): Sonus_UAC IN IP4 10.34.241.67
             Session Name (s): SIP Media Capabilities
             Connection Information (c): IN IP4 10.34.240.60
             Time Description, active time (t): 0 0
             Media Description, name and address (m): audio 1552 RTP/AVP 
0 8 101
             Media Attribute (a): rtpmap:0 PCMU/8000
             Media Attribute (a): rtpmap:8 PCMA/8000
             Media Attribute (a): rtpmap:101 telephone-event/8000
             Media Attribute (a): fmtp:101 0-15
             Media Attribute (a): sendrecv
             Media Attribute (a): ptime:20

  * SDP sent from CE to our SBC (following packet in the sequence):

         Session Description Protocol
             Session Description Protocol Version (v): 0
             Owner/Creator, Session Id (o): Sonus_UAC IN IP4 10.34.242.11
             Session Name (s): SIP Media Capabilities
             Connection Information (c): IN IP4 10.34.242.11
             Time Description, active time (t): 0 0
             Media Description, name and address (m): audio 30132 
RTP/AVP 0 8 101
             Media Attribute (a): rtpmap:0 PCMU/8000
             Media Attribute (a): rtpmap:8 PCMA/8000
             Media Attribute (a): rtpmap:101 telephone-event/8000
             Media Attribute (a): fmtp:101 0-15
             Media Attribute (a): sendrecv
             Media Attribute (a): ptime:20
*Media Attribute (a): direction:active**
**            Media Attribute (a): oldmediaip:10.34.240.60**
**            Media Attribute (a): nortpproxy:yes*

Flow diagram:

|endpoint A| ------------- |SBC| ------------- |CE| ------------- |SBC| 
------------- |endpoint B|

SBC: 10.34.240.60, 10.34.241.67
CE: 10.34.242.11

Any ideas?
Thanks
Best regards
Imanol

El 08/11/2012 20:22, Andreas Granig escribió:
> Hi,
>
> On 11/08/2012 05:25 PM, Imanol Pardavila wrote:
>> I'm not sure about who builds SDP? lb, proxy, sems? I guess that the
> The SDP is created by the endpoints, not by the CE.
>
>> idea is create my customtt.tt2 file and use replace_body_all () function
>> something like:
>>
>> # remove direction attribute
>> replace_body_all(" a=directmedia:active ", "");
>>
>> Is it correct?
> Not sure about the whitespaces, you might need to leave them out I guess.
>
> Andreas
>
>
>
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> -----
> No se encontraron virus en este mensaje.
> Comprobado por AVG - www.avg.com
> Version: 2012.0.2221 / Base de datos de virus: 2441/5382 - Fecha de publicacion: 11/08/12

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