Plug & Play - VTech ET685 Administrator And Provisioning Manual

ET685 Administrator and Provisioning Manual
information sent by a client MUST ignore it (although it may be reported). Servers that
respond SHOULD only use option 43 to return the vendor-specific information to the client.
The code for this option is 60, and its minimum length is 1.
The phone sends its type (i.e. VTechET685) via this option to the DHCP server.
NOTE: Vendor class identifier for VTech ET685: VTechET685
Plug & Play
Plug & Play (PnP) provides a proprietory method to enable Auto Provisioning on all VTech
VoIP phones. By default (Parameter pnp config = on) the phones send SIP SUBSCRIBES
messages to a multicast address. Any SIP server understanding that message may reply
with a SIP NOTIFY message containing the Auto Provisioning Server URL where the
phones can request their configuration from.
SIP Flow
ET685 phones send on boot-up a SIP SUBSCRIBE message to a multicast address:
Sent to udp:224.0.1.75:5060 at 24/12/2001 00:00:19:248 (448 bytes):
SUBSCRIBE sip:MAC%3a00135E874B49@intern.vtech.ca SIP/2.0
Via: SIP/2.0/UDP 192.168.10.67:5060;rport
From: <sip:MAC%3a00135E874B49@intern.vtech.ca>;tag=658512961
To: <sip:MAC%3a00135E874B49@intern.vtech.ca>
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
If any SIP application within one hop range understands this message a confirmation is
sent:
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.vtech.ca>;tag=91955270
From: <sip:MAC%3a00135E874B49@intern.vtech.ca>;tag=658512961
Call-ID: 1930770594@192.168.10.67
CSeq: 1 SUBSCRIBE
Expires: 0
Content-Length: 0
followed by a SIP NOTIFY message containing the Auto Provisioning URL
Provisioning 19
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