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> —–Original Message—–
> From: asterisk-users-bounces@lists.digium.com
> [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Skyler
> Sent: Friday, May 13, 2011 2:59 PM
> To: ‘Asterisk Users Mailing List – Non-Commercial Discussion’
> Subject: [asterisk-users] OPTIONS Keep alive – Reply: 481 No
> subscription
>
> Hi all,
>
>
>
> Anyone know how to make asterisk properly reply to options
> keep-alive? Or just force a 200 OK somehow?
>
>
>
> I recently took over a server and they have ~80 pap2 devices
> that send nat keep-alive and * always replies with 481 No
> subscription. It’s more of an annoyance, I know but I like to
> keep my pcap’s clean.

You should be able to turn NAT Keepalive off on the PAP2s. If you need a NAT Keepalive type of service, use the qualify=yes for those peers in Asterisk

2 thoughts on - 481 No subscription

  • Really!? Wow, that would be so easy as it looks like qualify=yes is already
    enabled on each SIP channel. I’ll give that a try/test first and report
    back.

    [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Eric Wieling
    Sent: Friday, May 13, 2011 12:07 PM
    subscription

    You should be able to turn NAT Keepalive off on the PAP2s. If you need a
    NAT Keepalive type of service, use the qualify=yes for those peers in
    Asterisk

  • The purpose of qualify= is not for NAT keep-alives, but it generates enough traffic to keep the NAT translations open anyway.