asterisk users - Mar 2006 - OT: Using Sipsak to reboot a Snom phone

I have a custom sip reboot message I am transmitting to a Snom 200 to reboot
it. The Snom gets it, it says "200 OK" but it doesn't reboot. I
have turned
off the challenge-reboot option in the Snom. When I modify the
"Event:"
directive from "reboot" to "snom-reboot" the phone yields
"Bad Event" and
when it is just "reboot" the phone responds with 200 OK, so I know it
is
parsing the event properly. Here is a sip trace:

Received from udp:192.168.1.46:34767 at 15/3/2006 11:35:29:070 (363 bytes):

NOTIFY sip:8247@192.168.1.46;user=phone SIP/2.0
Via: SIP/2.0/UDP 192.168.1.46:34767;rport
Via: SIP/2.0/UDP 192.168.1.46:5060
From: <sip:unknown@192.168.1.46>
To: <sip:8247@192.168.1.46>
Contact: <sip:8247@192.168.1.46>
Call-ID: 4d61cf9e505d40e905032a18329d61ec@192-168-1-46
CSeq: 102 NOTIFY
User-Agent: Asterisk PBX
Event: reboot
Content-Length: 0


----------------------------------------------------------------------------
----

Sent to udp:192.168.1.46:34767 at 15/3/2006 11:35:29:070 (259 bytes):

SIP/2.0 200 Ok
Via: SIP/2.0/UDP 192.168.1.46:34767;rport=34767
Via: SIP/2.0/UDP 192.168.1.46:5060
From: <sip:unknown@192.168.1.46>
To: <sip:8247@192.168.1.46>
Call-ID: 4d61cf9e505d40e905032a18329d61ec@192-168-1-46
CSeq: 102 NOTIFY
Content-Length: 0

Anyone have an idea? Christian?