[SR-Users] Stupid NAT tricks to learn from Apple

[Kristian Kielhofner]

Hi Daniel,

  I know, shocking (heh)!

  The protocol violations were very slight - omitting SDP rtpmap lines
for dynamic RTP payloads, omitting a=rtcp-mux for RTP+RTCP mux (but
they're already muxing SIP too, so ehh).  Possibly others.

On Fri, Sep 20, 2013 at 10:19 AM, Daniel-Constantin Mierla
<miconda at gmail.com> wrote:
> Hello,
>
> interesting, thanks for sharing!
>
> What else I could say, I am really deeply extremely ... (can't find other
> words) ... shocked they don't use SIGCOMP specs [ha ha!]! I remember some
> discussions when I said that usage of one well established compression
> algoritm will get it done in few hours (implementatio wise) than what IETF
> came up with in this regard. Sad but true, many IETF specs have no touch
> with reality...
>
> Maybe I missed while quick reading, what are the "various /slight/ protocol
> violations" you spotted?
>
> Cheers,
> Daniel
>
>
> On 9/20/13 3:16 PM, Kristian Kielhofner wrote:
>>
>> I've been spending some time looking at some of the significant
>> changes Apple has made to Facetime in iOS 7.  I'm far from an Apple
>> fanboy but some of them are pretty interesting:
>>
>> - multiplexing everything over a single UDP port
>> - deflate compression with SIP
>> - various /slight/ protocol violations ;)
>>
>> More here:
>>
>> http://blog.krisk.org/2013/09/apples-new-facetime-sip-perspective.html
>>
>> As SDP bodies swell more and more can we hope to build significant
>> support for multiplexing and deflate compression in the SIP-focused
>> open source ecosystem?
>>
>
> --
> Daniel-Constantin Mierla - http://www.asipto.com
> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
> Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
>   - more details about Kamailio trainings at http://www.asipto.com -
>
>
>
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-- 
Kristian Kielhofner