SIP via TCP

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It should be possible to send SIP requests via TCP.

Original issue reported on code.google.com by eofs...@gmail.com on 11 Apr 2010 at 2:20

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Any plans to implement SIP over TCP?

Original comment by Alexande...@googlemail.com on 26 Aug 2010 at 4:51

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Are there any updates to this since 2010?

Original comment by sj...@sjorsgielen.nl on 2 Jun 2012 at 8:00

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I enabled fallback to TCP when the packet was bigger than some threshold (pjsip 
feature), but many users had critical problems, where they couldn’t connect 
to their servers at all. So I switched it off. But it should be possible to 
receive TCP requests.

Original comment by eofs...@gmail.com on 2 Jun 2012 at 9:50

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In Asterisk I know the server must specifically be configured to allow TCP or 
UDP connections (UDP is default). See 
http://rene.bz/using-sip-over-tcp-with-asterisk/. It would be great if I could 
configure a specific account to always connect over UDP or TCP.

Original comment by sj...@sjorsgielen.nl on 3 Jun 2012 at 3:11

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Using my iPhone in my university's network environment, sip connections over 
UDP were problematic (dropped sound) until I configured iSip on the iPhone to 
use TCP.
So I would like to force telephone-app to use TCP too to see if this also 
improves the quality.
Thanks Alexei for such an excellent and free tool. The small window looks 
un-impressive on the screen ... but it has a big WOW effect once people see it 
in action !!!

Original comment by pe...@goedtkindt.name on 14 Aug 2012 at 9:36

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any udpate on TCP?

Original comment by c.de...@rxhost.co.uk on 29 Apr 2014 at 5:35