[SR-Users] OT: are there still asymmetric SIP clients?

Sergey Okhapkin sos at sokhapkin.dyndns.org
Wed Jun 22 15:36:00 CEST 2011


A lot of Cisco (not linksys) SIP equipment is asymmetric.

On Wednesday 22 June 2011, Klaus Darilion wrote:
> Hi!
> 
> Just a small survey: Are you still using NAT detection checks? I prefer
> to apply NAT traversal always (never trust the contact header) which of
> course only works if all the clients are symmetric.
> 
> Thus - do you still see asymmetric SIP clients?
> 
> Thanks
> Klaus
> 
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