[SR-Users] NatHelper - Received adding on Contact header

ycaner yasin.caner at netgsm.com.tr
Tue Oct 4 07:58:59 CEST 2016

        Our goal is 100k
        subscriber and i know that Asterisk cannot handle 3k subscriber
        that sending options to keep open ports. So this situation is afraid
        of me. Yeah ,You re right, dont trust endpoints. I think UAc
        keep-alive mechanism can solve this. This is UAC's problem  :) 
        I will just warn UAC production. 
    Thanks for reply. 
    Have a nice day.Cheers. 
    3.10.2016 16:19 tarihinde Daniel
      Tryba-2 [via SIP Router] yazdı: 
     On Mon, Oct 03, 2016 at 03:35:59AM -0700, ycaner
      > it is simple way to solve this and it is softphone product
      problem. If i did
      > configuration as you said , it consumes so much socket , CPU
      and etc. in
      > future.
      I can't imagine this will be a significant amount of cpu/traffic.
      I can
      only speak for my users, but near 100% is behind NAT or a
      firewall. Treating the users as always NATed avoids a lot of
      so far.
      > I wonder that is there a something about it  on ietf or
      protocol flows. I
      > think it is wrong. 
      > What do you think about it.
      I can't find any info about this learning process via the Contact
      header. But I have seen this kind of behavior with Patton
      equipment, in these appliances this learning is related to the
      keep-alive mechanism. This further supported my idea to never
      trust any
      endpoint device :)
      SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
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