On Fri, Dec 11, 2020 at 11:33 PM Sergio Charrua <sergio.charrua@voip.pt> wrote:

I will assume that you use Kamailio as SIP Proxy between a SIP Provider (TelCo) and your Asterisk boxes (using SIP.conf), and that Kamailio is receiving OPTIONS messages from TelCo, and forwarding those OPTIONS to Asterisk who will fail to answer.
This is a common implementation with TelCos.The solution is to set Kamailio to Reply to TelCo, adding following route:

route {
# OPTIONS requests without a username in the Request-URI but one
# of our domains or IPs are addressed to the proxy itself and
# can be answered statelessly.
if (is_method("OPTIONS"))
{
sl_send_reply("200","OK");
exit;
}
[.....]

It will then reply SIP 200 to TelCo.
Usually, Asterisk does not answer to SIP OPTION messages coming from TelCos (and thus acting like a SIP Agent) but it does send OPTIONS to SIP Agents and peers, which in turn will reply (I think it is set by the Qualify which pings the SIP peers).
So, in this case, Kamailio should be the one to reply to Telco's SIP OPTION request with a 200 OK response (if it replies 404 NOT FOUND the TelCo will then set your servers as OFFLINE and you won't receive calls or SIP messages anymore, just like it is happening to you in the present).

I think that Asterisk with PJSIP allows replies to OPTION messages, but I still haven't used PJSIP.....

Hope this helps.

Sérgio Charrua

www.voip.pt
Tel.: +351 21 130 71 77
Email : sergio.charrua@voip.pt

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On Fri, Dec 11, 2020 at 8:00 PM Joel Serrano <joel@textplus.com> wrote:
You can also set 404 as a valid response to the OPTIONS in Kam.
On Fri, Dec 11, 2020 at 05:36 Barry Flanagan <barry@flanagan.ie> wrote:
On 11/12/2020 13:23, Mihai Cezar wrote:

Hello, You right, i've found something, seems that the kamailio-probe it puts the destination down. Any ideas why it's doing this ?

"OPTIONS-Request was finished with code 404"

The OPTIONS returns a 404. You need to put something into your default context in Asterisk so it returns 200. If your default context is "default" then this would work in extensions.conf:

[default]

exten => s,1,Hangup()

Then do a "dialplan reload" in asterisk.

Hope this helps

-Barry Flanagan
: ds_run_route(): ds_run_route event_route[dispatcher:dst-down
: ds_run_route(): route does not exist 8(24491) DEBUG: {2 10 OPTIONS 3afe874f6d71811b-24504@127.0.0.1} dispatcher
: ds_options_callback(): OPTIONS-Request was finished with code 404 (to sip:10.1.2.2;transport=udp, group 1)
: ds_update_state(): update state for sip:10.1.2.2;transport=udp in group 1 to 10
: ds_update_state(): destination did not replied 10 times, threshold 10
: ds_update_state(): deactivate destination, threshold 10 reached
: ds_run_route(): ds_run_route event_route[dispatcher:dst-down
: ds_run_route(): route does not exist 8(24491) DEBUG: {2 10 OPTIONS 3afe874f6d71811c-24504@127.0.0.1} dispatcher [dispatch.c:2805
: ds_manage_routes(): set 1

On Thu, Dec 10, 2020 at 11:53 AM Володимир Іванець <volodyaivanets@gmail.com> wrote:

Hello,

Can you see some warnings or errors in the Kamailio log file? If no, try to increase the verbosity level.

Also, how does the third REGISTER compares to the first or second one?

чт, 10 груд. 2020 о 09:08 Mihai <m@mokalife.ro> пише:

Hi,

I am forwarding all the traffic to my asterisk server ( including registers)

everything seems to work when i first register but if stay idle 2-3 minute it gets unregistered and then i can't register back unless i restart kamailio

see attached print screen

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_______________________________________________
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-- 
-Barry
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