Content
Solution
When "PNP config" is "ON" (by default) the phone sends a SUBSCRIBE message to a multicast address. All setting servers which have membership to the group can respond to the SUBSCRIBE and send NOTIFY messages with the setting server HTTP URL in the body. The phone then retrieves its settings from the link specified.
This is particularly useful for out of the box setup of devices and mass deployment.
Please see this Sample SIP Trace for further details.
PnP Config
Sent to udp:224.0.1.75:5060 at 24/12/2001 00:00:19:248 (448 bytes): SUBSCRIBE sip:MAC%3a00135E874B49@intern.snom.de SIP/2.0 Via: SIP/2.0/UDP 192.168.10.67:5060;rport From: <sip:MAC%3a00135E874B49@intern.snom.de>;tag=658512961 To: <sip:MAC%3a00135E874B49@intern.snom.de> Call-ID: 1930770594@192.168.10.67 CSeq: 1 SUBSCRIBE Event: ua-profile;profile-type="device";vendor="OEM";model="OEM";version="7.1.19" Expires: 0 Accept: application/url Contact: <sip:192.168.10.67:5060> Content-Length: 0
Received from udp:192.168.100.10:5060 at 24/12/2001 00:00:19:287 (480 bytes): SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.10.67:5060;rport=5060 Record-Route: <sip:127.0.0.1;lr;transport=tcp;route-id=fb4fb92b7775c2a7> Record-Route: <sip:192.168.100.10;lr;transport=UDP;route-id=fb4fb92b7775c2a7> Contact: <sip:192.168.100.10;transport=TCP;handler=dum> To: <sip:MAC%3a00135E874B49@intern.snom.de>;tag=91955270 From: <sip:MAC%3a00135E874B49@intern.snom.de>;tag=658512961 Call-ID: 1930770594@192.168.10.67 CSeq: 1 SUBSCRIBE Expires: 0 Content-Length: 0
Received from udp:192.168.100.10:5060 at 24/12/2001 00:00:19:293 (868 bytes): NOTIFY sip:192.168.10.67:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.100.10:5060;branch=z9hG4bK-d8754z-c3ea5f0e74462613-1---d8754z-;rport Via: SIP/2.0/TCP 127.0.0.1:5060;branch=z9hG4bK-d8754z-7ca96c30144f3e04-1---d8754z-;rport=40916 Max-Forwards: 20 Record-Route: <sip:192.168.100.10;lr;route-id=e3470eb400e9c0a4> Record-Route: <sip:127.0.0.1;lr;transport=TCP;route-id=e3470eb400e9c0a4> Contact: <sip:192.168.100.10;transport=TCP;handler=dum> To: <sip:MAC%3a00135E874B49@intern.snom.de>;tag=658512961 From: <sip:MAC%3a00135E874B49@intern.snom.de>;tag=91955270 Call-ID: 1930770594@192.168.10.67 CSeq: 3 NOTIFY Content-Type: application/url Subscription-State: terminated;reason=timeout Event: ua-profile;profile-type="device";vendor="OEM";model="OEM";version="7.1.19" Content-Length: 59 http://192.168.100.10/sipphone/sipphoneconfig.xml?mac={mac}
Sent to udp:192.168.100.10:5060 at 24/12/2001 00:00:19:315 (542 bytes): SIP/2.0 200 Ok Via: SIP/2.0/UDP 192.168.100.10:5060;branch=z9hG4bK-d8754z-c3ea5f0e74462613-1---d8754z-;rport=5060 Via: SIP/2.0/TCP 127.0.0.1:5060;branch=z9hG4bK-d8754z-7ca96c30144f3e04-1---d8754z-;rport=40916 Record-Route: <sip:192.168.100.10;lr;route-id=e3470eb400e9c0a4> Record-Route: <sip:127.0.0.1;lr;transport=TCP;route-id=e3470eb400e9c0a4> From: <sip:MAC%3a00135E874B49@intern.snom.de>;tag=91955270 To: <sip:MAC%3a00135E874B49@intern.snom.de>;tag=658512961 Call-ID: 1930770594@192.168.10.67 CSeq: 3 NOTIFY Content-Length: 0
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