On Thu, Nov 29, 2018 at 02:42:26PM -0500, Roman Shpount wrote: > Some devices do this to keep a pinhole in NAT firewall open. Pleases see if > you can enable keep-alive on your proxy and the device for the same purpose > (https://tools.ietf.org/html/rfc5626#section-3.5).
Yep, they may. But a few seconds is simply too aggressive. > We have successfully used 480 with "Retry-After" to reduce the load on the > proxy after network connectivity disruption, so this should work for your > purpose, but I would still suggest addressing the root cause. Other option > is too have proxy to use some sort of in-memory DB to efficiently handle > frequent registrations for devices that do no support SIP keep alive. I agree. At this point it's a matter of principle rather than unmanageable load. -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors