On Thu, Nov 29, 2018 at 2:44 PM Alex Balashov <abalas...@evaristesys.com> wrote:
> 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. > Windows 7 NAT (reusing ISP connection across multiple devices) has a 4 second timeout. This is why some devices has a very small keep alive interval. _____________ Roman Shpount _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors