so I changed it to 

t_uac_send("NOTIFY", "$(ct{s.substr,1,0}{s.striptail,1})", "$su", 
"udp:192.168.1.156:5060","Call-ID: $hdr(Call-ID)\r\nSubscription-State: 
terminated;reason=timeout\r\nEvent: $hdr(Event)\r\nContent-Type: 
application/url\r\nFrom: $fU\r\nTo: $hdr(From)", 
"http://server.conf/settings-{mac}";);

unfortunately the SIP - Pakets are still send from the wrong IP.

U 192.168.1.152:57145 -> 224.0.1.75:5060 #1
SUBSCRIBE sip:MAC%3a0004137120D8@lan SIP/2.0.
Via: SIP/2.0/UDP 192.168.1.152:57145;rport.
From: <sip:MAC%3a0004137120D8@lan>;tag=1881587606.
To: <sip:MAC%3a0004137120D8@lan>.
Call-ID: [email protected].
CSeq: 1 SUBSCRIBE.
Event: 
ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
Expires: 0.
Accept: application/url.
Contact: <sip:192.168.1.152:57145>.
User-Agent: snom760/8.9.3.80.
Content-Length: 0.
.

#
U 192.168.1.156:5060 -> 192.168.1.152:57145 #2
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 192.168.1.152:57145;rport=57145;received=192.168.1.152.
From: <sip:MAC%3a0004137120D8@lan>;tag=1881587606.
To: <sip:MAC%3a0004137120D8@lan>;tag=fb721cde02dffb6bb099728401306798.3eb0.
Call-ID: [email protected].
CSeq: 1 SUBSCRIBE.
Server: kamailio (5.2.5 (x86_64/linux)).
Content-Length: 0.
.

#
U 172.23.56.1:5060 -> 192.168.1.152:57145 #3
NOTIFY sip:192.168.1.152:57145 SIP/2.0.
Via: SIP/2.0/UDP 
192.168.1.156:5060;branch=z9hG4bKdb57.88b81c37000000000000000000000000.0.
To: <sip:MAC%3a0004137120D8@lan>;tag=1881587606.
From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-6c90.
CSeq: 10 NOTIFY.
Call-ID: [email protected].
Max-Forwards: 70.
Content-Length: 33.
User-Agent: kamailio (5.2.5 (x86_64/linux)).
Subscription-State: terminated;reason=timeout.
Event: 
ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
Content-Type: application/url.
.
http://server.conf/settings-{mac}
#
U 172.23.56.1:5060 -> 192.168.1.152:57145 #4
NOTIFY sip:192.168.1.152:57145 SIP/2.0.
Via: SIP/2.0/UDP 
192.168.1.156:5060;branch=z9hG4bKdb57.88b81c37000000000000000000000000.0.
To: <sip:MAC%3a0004137120D8@lan>;tag=1881587606.
From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-6c90.
CSeq: 10 NOTIFY.
Call-ID: [email protected].
Max-Forwards: 70.
Content-Length: 33.
User-Agent: kamailio (5.2.5 (x86_64/linux)).
Subscription-State: terminated;reason=timeout.
Event: 
ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
Content-Type: application/url.
.
http://server.conf/settings-{mac}
#




….


But what did help in this particular case is to change the order of the listen 
Interfaces:

From:

listen=udp:172.23.56.1:5060 <udp:172.23.56.1:5060> advertise 192.168.1.156:5060
listen=udp:192.168.1.156:5060 <udp:192.168.1.156:5060> advertise 
192.168.1.156:5060
listen=tcp:127.0.0.1:5060          

mcast="eth0"
listen=udp:224.0.1.75:5060 <udp:224.0.1.75:5060>

To:

listen=udp:192.168.1.156:5060 <udp:192.168.1.156:5060> advertise 
192.168.1.156:5060
listen=udp:172.23.56.1:5060 <udp:172.23.56.1:5060> advertise 192.168.1.156:5060
listen=tcp:127.0.0.1:5060          

mcast="eth0"
listen=udp:224.0.1.75:5060 <udp:224.0.1.75:5060>


Although this workaround works here, it is difficult in cases when sending 
events to different networks.
(for example check-sync events).




> Am 30.03.2020 um 19:01 schrieb Daniel-Constantin Mierla <[email protected]>:
> 
> Hello,
> 
> On 30.03.20 18:41, Jan-Hendrik Dörner wrote:
>> Hello Daniel,
>> 
>> thank you for your reply.
>> 
>> I changed the line mentioned to
>> t_uac_send("NOTIFY", "$(ct{s.substr,1,0}{s.striptail,1})", "$su", 
>> "192.168.1.156","Call-ID: $hdr(Call-ID)\r\nSubscription-State: 
>> terminated;reason=timeout\r\nEvent: $hdr(Event)\r\nContent-Type: 
>> application/url\r\nFrom: $fU\r\nTo: $hdr(From)", 
>> "http://server.conf/settings-{mac} 
>> <http://server.conf/settings-%7Bmac%7D>"); 
>> 
>> the result is:
>> 3) Call-ID is fine now ; Problem solved :-)
> OK.
> 
> 
> 
>> 
>> 1) The Via IP is now changed to the IP and port of the server, but not to 
>> the IP of the phone. 
> Actually that is the correct value, Via is the address of the entity sending 
> out the request. It is used to route the replies, so Via in Notify has to be 
> the address of the kamailio server so the reply to it is sent by the phone 
> back to Kamailio.
> 
> 
> 
>> 
>> 2) The sending interface  / IP is not correct: It now sends _only_ from the 
>> wrong IP !!
> Can you try with full specs for socket, like "upd:IP:port"?
> 
> Cheers,
> Daniel
> 
> 
> 
>> As a result, it repeats sending the NOTIFY-message over and over again since 
>> the message does not get to the phone ...
>> Please see the starting of the SIP-traffic below
>> 
>> U 192.168.1.152:57283 -> 224.0.1.75:5060 #53
>> SUBSCRIBE sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan> SIP/2.0.
>> Via: SIP/2.0/UDP 192.168.1.152:57283;rport.
>> From: <sip:MAC%3a0004137120D8@lan 
>> <sip:MAC%3a0004137120D8@lan>>;tag=176419003.
>> To: <sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan>>.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> CSeq: 1 SUBSCRIBE.
>> Event: 
>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>> Expires: 0.
>> Accept: application/url.
>> Contact: <sip:192.168.1.152:57283 <sip:192.168.1.152:57283>>.
>> User-Agent: snom760/8.9.3.80.
>> Content-Length: 0.
>> .
>> 
>> #
>> U 192.168.1.156:5060 -> 192.168.1.152:57283 #54
>> SIP/2.0 200 OK.
>> Via: SIP/2.0/UDP 192.168.1.152:57283;rport=57283;received=192.168.1.152.
>> From: <sip:MAC%3a0004137120D8@lan 
>> <sip:MAC%3a0004137120D8@lan>>;tag=176419003.
>> To: <sip:MAC%3a0004137120D8@lan 
>> <sip:MAC%3a0004137120D8@lan>>;tag=fb721cde02dffb6bb099728401306798.1182.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> CSeq: 1 SUBSCRIBE.
>> Server: kamailio (5.2.5 (x86_64/linux)).
>> Content-Length: 0.
>> .
>> 
>> #
>> U 172.23.56.1:5060 -> 192.168.1.152:57283 #55
>> NOTIFY sip:192.168.1.152:57283 <sip:192.168.1.152:57283> SIP/2.0.
>> Via: SIP/2.0/UDP 
>> 192.168.1.156:5060;branch=z9hG4bKee8f.0ea476a1000000000000000000000000.0.
>> To: <sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan>>;tag=176419003.
>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-9700.
>> CSeq: 10 NOTIFY.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> Max-Forwards: 70.
>> Content-Length: 33.
>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>> Subscription-State: terminated;reason=timeout.
>> Event: 
>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>> Content-Type: application/url.
>> .
>> http://server.conf/settings-{mac} <http://server.conf/settings-%7Bmac%7D>
>> #
>> U 172.23.56.1:5060 -> 192.168.1.152:57283 #56
>> NOTIFY sip:192.168.1.152:57283 <sip:192.168.1.152:57283> SIP/2.0.
>> Via: SIP/2.0/UDP 
>> 192.168.1.156:5060;branch=z9hG4bKee8f.0ea476a1000000000000000000000000.0.
>> To: <sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan>>;tag=176419003.
>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-9700.
>> CSeq: 10 NOTIFY.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> Max-Forwards: 70.
>> Content-Length: 33.
>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>> Subscription-State: terminated;reason=timeout.
>> Event: 
>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>> Content-Type: application/url.
>> .
>> http://server.conf/settings-{mac} <http://server.conf/settings-%7Bmac%7D>
>> #
>> U 172.23.56.1:5060 -> 192.168.1.152:57283 #57
>> NOTIFY sip:192.168.1.152:57283 <sip:192.168.1.152:57283> SIP/2.0.
>> Via: SIP/2.0/UDP 
>> 192.168.1.156:5060;branch=z9hG4bKee8f.0ea476a1000000000000000000000000.0.
>> To: <sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan>>;tag=176419003.
>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-9700.
>> CSeq: 10 NOTIFY.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> Max-Forwards: 70.
>> Content-Length: 33.
>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>> Subscription-State: terminated;reason=timeout.
>> Event: 
>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>> Content-Type: application/url.
>> .
>> http://server.conf/settings-{mac} <http://server.conf/settings-%7Bmac%7D>
>> #
>> U 192.168.1.152:57283 -> 224.0.1.75:5060 #58
>> SUBSCRIBE sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan> SIP/2.0.
>> Via: SIP/2.0/UDP 192.168.1.152:57283;rport.
>> From: <sip:MAC%3a0004137120D8@lan 
>> <sip:MAC%3a0004137120D8@lan>>;tag=1472545741.
>> To: <sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan>>.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> CSeq: 1 SUBSCRIBE.
>> Event: 
>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>> Expires: 0.
>> Accept: application/url.
>> Contact: <sip:192.168.1.152:57283 <sip:192.168.1.152:57283>>.
>> User-Agent: snom760/8.9.3.80.
>> Content-Length: 0.
>> .
>> 
>> #
>> U 192.168.1.156:5060 -> 192.168.1.152:57283 #59
>> SIP/2.0 200 OK.
>> Via: SIP/2.0/UDP 192.168.1.152:57283;rport=57283;received=192.168.1.152.
>> From: <sip:MAC%3a0004137120D8@lan 
>> <sip:MAC%3a0004137120D8@lan>>;tag=1472545741.
>> To: <sip:MAC%3a0004137120D8@lan 
>> <sip:MAC%3a0004137120D8@lan>>;tag=fb721cde02dffb6bb099728401306798.1182.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> CSeq: 1 SUBSCRIBE.
>> Server: kamailio (5.2.5 (x86_64/linux)).
>> Content-Length: 0.
>> .
>> 
>> #
>> U 172.23.56.1:5060 -> 192.168.1.152:57283 #60
>> NOTIFY sip:192.168.1.152:57283 <sip:192.168.1.152:57283> SIP/2.0.
>> Via: SIP/2.0/UDP 
>> 192.168.1.156:5060;branch=z9hG4bKa0df.967a0433000000000000000000000000.0.
>> To: <sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan>>;tag=1472545741.
>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-d106.
>> CSeq: 10 NOTIFY.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> Max-Forwards: 70.
>> Content-Length: 33.
>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>> Subscription-State: terminated;reason=timeout.
>> Event: 
>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>> Content-Type: application/url.
>> .
>> http://server.conf/settings-{mac} <http://server.conf/settings-%7Bmac%7D>
>> #
>> U 172.23.56.1:5060 -> 192.168.1.152:57283 #61
>> NOTIFY sip:192.168.1.152:57283 <sip:192.168.1.152:57283> SIP/2.0.
>> Via: SIP/2.0/UDP 
>> 192.168.1.156:5060;branch=z9hG4bKa0df.967a0433000000000000000000000000.0.
>> To: <sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan>>;tag=1472545741.
>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-d106.
>> CSeq: 10 NOTIFY.
>> Call-ID: [email protected] <mailto:[email protected]>.
>> Max-Forwards: 70.
>> Content-Length: 33.
>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>> Subscription-State: terminated;reason=timeout.
>> Event: 
>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>> Content-Type: application/url.
>> .
>> http://server.conf/settings-{mac} <http://server.conf/settings-%7Bmac%7D>
>> #
>> 
>> (If I change the IP-parameter to "172.23.56.1" the resulting sending IP is 
>> unchanged!)
>> 
>> 
>> 
>>> Am 30.03.2020 um 16:17 schrieb Daniel-Constantin Mierla <[email protected] 
>>> <mailto:[email protected]>>:
>>> 
>>> Hello,
>>> 
>>> On 30.03.20 12:07, Jan-Hendrik Dörner wrote:
>>>> Hallo,
>>>> 
>>>> several telephones send a SIP-multicast SUBSCRIBE message to address 
>>>> 224.0.1.75 if they have no settings-URL configured and receive none over 
>>>> DHCP.
>>>> 
>>>> So I configure my kamailio server, to respond to that multicast-request.
>>>> But: Although mine is working, I do feel it could be improved, since the 
>>>> NOTIFY packet send out is  not quite as it should be …
>>>> 
>>>> Here is what I did (the 172.23.56.1 is my voip-vlan-address)
>>>> 
>>>> listen=udp:172.23.56.1:5060 <udp:172.23.56.1:5060> advertise 
>>>> 192.168.1.156:5060
>>>> listen=udp:192.168.1.156:5060 <udp:192.168.1.156:5060> advertise 
>>>> 192.168.1.156:5060
>>>> listen=tcp:127.0.0.1:5060          
>>>> 
>>>> mcast="eth0"
>>>> listen=udp:224.0.1.75:5060 <udp:224.0.1.75:5060>
>>>> 
>>>> ….
>>>> 
>>>>   if ($Ri == "224.0.1.75"){
>>>>        if(is_method("SUBSCRIBE")){
>>>>           xlog("L_INFO", "Received pnp-event from IP $si from User-Agent 
>>>> $hdr(User-Agent) und User $fU\r\n" );                                      
>>>>      
>>>>           sl_send_reply("200", "OK");                                      
>>>>                                                                            
>>>>    
>>>>           t_uac_send("NOTIFY", "$(ct{s.substr,1,0}{s.striptail,1})", "", 
>>>> "","Subscription-State: terminated;reason=timeout\r\nEvent: 
>>>> $hdr(Event)\r\nContent-Type: application/url\r\nFrom: $fU\r\nTo: 
>>>> $hdr(From)", "http://server.conf/settings-{mac} 
>>>> <http://server.conf/settings-%7Bmac%7D>");
>>>>        }else  {                                                            
>>>>                                                                            
>>>>                                                                            
>>>>        
>>>>          xlog("L_INFO", "Drop message $rm from pnp-Interface \r\n" );
>>>>       }                                          
>>>>       exit;
>>>>    }                    
>>>> 
>>>> 
>>>> And here are the SIP-packets  I see on my server (192.168.1.156) coming 
>>>> from my snom-phone (192.168.1.152).
>>>> My problems with the NOTIFY -packets are: 
>>>> 1) How do I set the Via parameters to be the same as in the OK-reply?
>>> 
>>> Try to set the next hop address to "$su" and combined with 2) maybe it
>>> results in what you want to get.
>>> 
>>> 
>>>> 2) How do I send out the NOTIFY only via the 192.168.1.156 network 
>>>> interface? 
>>> 
>>> Set the local socket parameter from where to send the NOTIFY.
>>> 
>>> 
>>>> 3) May I send out the NOTIFY with the Call-ID from the SUBSCRIBE message? 
>>>> How?
>>> 
>>> 
>>> Provide the Call-Id haeder as part of the headers parameter:
>>> 
>>>   -
>>> https://www.kamailio.org/docs/modules/stable/modules/tm.html#tm.f.t_uac_send
>>>  
>>> <https://www.kamailio.org/docs/modules/stable/modules/tm.html#tm.f.t_uac_send>
>>> 
>>> Cheers,
>>> Daniel
>>> 
>>> 
>>>> 
>>>> Any help is highly appreciated
>>>> Jan-Hendrik
>>>> 
>>>> #
>>>> U 192.168.1.152:58714 -> 224.0.1.75:5060 #258
>>>> SUBSCRIBE sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan> SIP/2.0.
>>>> Via: SIP/2.0/UDP 192.168.1.152:58714;rport.
>>>> From: <sip:MAC%3a0004137120D8@lan 
>>>> <sip:MAC%3a0004137120D8@lan>>;tag=1750588964.
>>>> To: <sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan>>.
>>>> Call-ID: [email protected] <mailto:[email protected]>.
>>>> CSeq: 1 SUBSCRIBE.
>>>> Event: 
>>>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>>>> Expires: 0.
>>>> Accept: application/url.
>>>> Contact: <sip:192.168.1.152:58714 <sip:192.168.1.152:58714>>.
>>>> User-Agent: snom760/8.9.3.80.
>>>> Content-Length: 0.
>>>> .
>>>> 
>>>> #
>>>> U 192.168.1.156:5060 -> 192.168.1.152:58714 #259
>>>> SIP/2.0 200 OK.
>>>> Via: SIP/2.0/UDP 192.168.1.152:58714;rport=58714;received=192.168.1.152.
>>>> From: <sip:MAC%3a0004137120D8@lan 
>>>> <sip:MAC%3a0004137120D8@lan>>;tag=1750588964.
>>>> To: <sip:MAC%3a0004137120D8@lan 
>>>> <sip:MAC%3a0004137120D8@lan>>;tag=fb721cde02dffb6bb099728401306798.2f00.
>>>> Call-ID: [email protected] <mailto:[email protected]>.
>>>> CSeq: 1 SUBSCRIBE.
>>>> Server: kamailio (5.2.5 (x86_64/linux)).
>>>> Content-Length: 0.
>>>> .
>>>> 
>>>> #
>>>> U 192.168.1.156:5060 -> 192.168.1.152:58714 #260
>>>> NOTIFY sip:192.168.1.152:58714 <sip:192.168.1.152:58714> SIP/2.0.
>>>> Via: SIP/2.0/UDP 
>>>> 224.0.1.75;branch=z9hG4bKf21c.917eaf36000000000000000000000000.0.
>>>> To: <sip:MAC%3a0004137120D8@lan 
>>>> <sip:MAC%3a0004137120D8@lan>>;tag=1750588964.
>>>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-8cfb.
>>>> CSeq: 10 NOTIFY.
>>>> Call-ID: [email protected] 
>>>> <mailto:[email protected]>.
>>>> Max-Forwards: 70.
>>>> Content-Length: 33.
>>>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>>>> Subscription-State: terminated;reason=timeout.
>>>> Event: 
>>>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>>>> Content-Type: application/url.
>>>> .
>>>> http://server.conf/settings-{mac} <http://server.conf/settings-%7Bmac%7D>
>>>> #
>>>> U 172.23.56.1:5060 -> 192.168.1.152:58714 #261
>>>> NOTIFY sip:192.168.1.152:58714 <sip:192.168.1.152:58714> SIP/2.0.
>>>> Via: SIP/2.0/UDP 
>>>> 224.0.1.75;branch=z9hG4bKf21c.917eaf36000000000000000000000000.0.
>>>> To: <sip:MAC%3a0004137120D8@lan 
>>>> <sip:MAC%3a0004137120D8@lan>>;tag=1750588964.
>>>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-8cfb.
>>>> CSeq: 10 NOTIFY.
>>>> Call-ID: [email protected] 
>>>> <mailto:[email protected]>.
>>>> Max-Forwards: 70.
>>>> Content-Length: 33.
>>>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>>>> Subscription-State: terminated;reason=timeout.
>>>> Event: 
>>>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>>>> Content-Type: application/url.
>>>> .
>>>> http://server.conf/settings-{mac} <http://server.conf/settings-%7Bmac%7D>
>>>> #
>>>> U 172.23.56.1:5060 -> 192.168.1.152:58714 #262
>>>> NOTIFY sip:192.168.1.152:58714 <sip:192.168.1.152:58714> SIP/2.0.
>>>> Via: SIP/2.0/UDP 
>>>> 224.0.1.75;branch=z9hG4bKf21c.917eaf36000000000000000000000000.0.
>>>> To: <sip:MAC%3a0004137120D8@lan> 
>>>> <sip:MAC%3a0004137120D8@lan>;tag=1750588964.
>>>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-8cfb.
>>>> CSeq: 10 NOTIFY.
>>>> Call-ID: [email protected] 
>>>> <mailto:[email protected]>.
>>>> Max-Forwards: 70.
>>>> Content-Length: 33.
>>>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>>>> Subscription-State: terminated;reason=timeout.
>>>> Event: 
>>>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>>>> Content-Type: application/url.
>>>> .
>>>> http://server.conf/settings <http://server.conf/settings>-{mac}
>>>> #
>>>> U 192.168.1.152:58714 -> 224.0.1.75:5060 #263
>>>> SUBSCRIBE sip:MAC%3a0004137120D8@lan <sip:MAC%3a0004137120D8@lan> SIP/2.0.
>>>> Via: SIP/2.0/UDP 192.168.1.152:58714;rport.
>>>> From: <sip:MAC%3a0004137120D8@lan> 
>>>> <sip:MAC%3a0004137120D8@lan>;tag=1971605806.
>>>> To: <sip:MAC%3a0004137120D8@lan> <sip:MAC%3a0004137120D8@lan>.
>>>> Call-ID: [email protected] <mailto:[email protected]>.
>>>> CSeq: 1 SUBSCRIBE.
>>>> Event: 
>>>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>>>> Expires: 0.
>>>> Accept: application/url.
>>>> Contact: <sip:192.168.1.152:58714> <sip:192.168.1.152:58714>.
>>>> User-Agent: snom760/8.9.3.80.
>>>> Content-Length: 0.
>>>> .
>>>> 
>>>> #
>>>> U 192.168.1.156:5060 -> 192.168.1.152:58714 #264
>>>> SIP/2.0 200 OK.
>>>> Via: SIP/2.0/UDP 192.168.1.152:58714;rport=58714;received=192.168.1.152.
>>>> From: <sip:MAC%3a0004137120D8@lan> 
>>>> <sip:MAC%3a0004137120D8@lan>;tag=1971605806.
>>>> To: <sip:MAC%3a0004137120D8@lan> 
>>>> <sip:MAC%3a0004137120D8@lan>;tag=fb721cde02dffb6bb099728401306798.2f00.
>>>> Call-ID: [email protected] <mailto:[email protected]>.
>>>> CSeq: 1 SUBSCRIBE.
>>>> Server: kamailio (5.2.5 (x86_64/linux)).
>>>> Content-Length: 0.
>>>> .
>>>> 
>>>> #
>>>> U 192.168.1.156:5060 -> 192.168.1.152:58714 #265
>>>> NOTIFY sip:192.168.1.152:58714 <sip:192.168.1.152:58714> SIP/2.0.
>>>> Via: SIP/2.0/UDP 
>>>> 224.0.1.75;branch=z9hG4bK201a.063839a4000000000000000000000000.0.
>>>> To: <sip:MAC%3a0004137120D8@lan> 
>>>> <sip:MAC%3a0004137120D8@lan>;tag=1971605806.
>>>> From: <MAC%3a0004137120D8>;tag=da567df9df3ac234e43969a051db4641-f31b.
>>>> CSeq: 10 NOTIFY.
>>>> Call-ID: [email protected] 
>>>> <mailto:[email protected]>.
>>>> Max-Forwards: 70.
>>>> Content-Length: 33.
>>>> User-Agent: kamailio (5.2.5 (x86_64/linux)).
>>>> Subscription-State: terminated;reason=timeout.
>>>> Event: 
>>>> ua-profile;profile-type="device";vendor="snom";model="snom760";version="8.9.3.80".
>>>> Content-Type: application/url.
>>>> .
>>>> http://server.conf/settings <http://server.conf/settings>-{mac}
>>>> #
>>>> U 192.168.1.152:58714 -> 192.168.1.156:5060 #266
>>>> SIP/2.0 200 Ok.
>>>> Via: SIP/2.0/UDP 
>>>> 224.0.1.75;branch=z9hG4bKf21c.917eaf36000000000000000000000000.0;received=192.168.1.156.
>>>> From: <MAC:0004137120D8>;tag=da567df9df3ac234e43969a051db4641-8cfb.
>>>> To: <sip:MAC%3A0004137120D8@lan> 
>>>> <sip:MAC%3A0004137120D8@lan>;tag=1750588964.
>>>> Call-ID: [email protected] 
>>>> <mailto:[email protected]>.
>>>> CSeq: 10 NOTIFY.
>>>> User-Agent: snom760/8.9.3.80.
>>>> Content-Length: 0.
>>>> .
>>>> 
>>>> #
>>>> U 192.168.1.152:58714 -> 192.168.1.156:5060 #267
>>>> SIP/2.0 200 Ok.
>>>> Via: SIP/2.0/UDP 
>>>> 224.0.1.75;branch=z9hG4bKf21c.917eaf36000000000000000000000000.0;received=192.168.1.156.
>>>> From: <MAC:0004137120D8>;tag=da567df9df3ac234e43969a051db4641-8cfb.
>>>> To: <sip:MAC%3A0004137120D8@lan> 
>>>> <sip:MAC%3A0004137120D8@lan>;tag=1750588964.
>>>> Call-ID: [email protected] 
>>>> <mailto:[email protected]>.
>>>> CSeq: 10 NOTIFY.
>>>> User-Agent: snom760/8.9.3.80.
>>>> Content-Length: 0.
>>>> .
>>>> 
>>>> #
>>>> U 192.168.1.152:58714 -> 192.168.1.156:5060 #268
>>>> SIP/2.0 200 Ok.
>>>> Via: SIP/2.0/UDP 
>>>> 224.0.1.75;branch=z9hG4bK201a.063839a4000000000000000000000000.0;received=192.168.1.156.
>>>> From: <MAC:0004137120D8>;tag=da567df9df3ac234e43969a051db4641-f31b.
>>>> To: <sip:MAC%3A0004137120D8@lan> 
>>>> <sip:MAC%3A0004137120D8@lan>;tag=1971605806.
>>>> Call-ID: [email protected] 
>>>> <mailto:[email protected]>.
>>>> CSeq: 10 NOTIFY.
>>>> User-Agent: snom760/8.9.3.80.
>>>> Content-Length: 0.
>>>> .
>>>> 
>>>> 
>>>> _______________________________________________
>>>> Kamailio (SER) - Users Mailing List
>>>> [email protected] <mailto:[email protected]>
>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users 
>>>> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>> 
>>> -- 
>>> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com/>
>>> www.twitter.com/miconda <http://www.twitter.com/miconda> -- 
>>> www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>> 
>> 
>> 
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> [email protected] <mailto:[email protected]>
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users 
>> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
> -- 
> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com/>
> www.twitter.com/miconda <http://www.twitter.com/miconda> -- 
> www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
_______________________________________________
Kamailio (SER) - Users Mailing List
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https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

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