PNP Provisoning on V7 Firmware Issues

[baddah]

Hi,

I have a PNP server that manages my auto provision. (through a tftp server).

This process has been working fine for Yealink (pre v7 firmware) and Fanvil phones. I have now updated one of my T20P phones to v7. (hardware version 7.0.0.60,software version 9.70.23.2 ).

Since i have done this the T20P does not react on the SIP notify my PNP server sends it. If i manually add the tftp server on the phone GUI, the update does work. (using both the old style and new style of config files.). PNP is enabled on the phone.

Here is the SIP notify i send back once i have received the multicast subscribe message.

Code:

NOTIFY sip:192.168.100.142:5059 SIP/2.0
Via: SIP/2.0/UDP 192.168.100.142:5059;branch=z9hG4bK47969
Max-Forwards: 20
Contact: <sip:10.0.50.100:1036;transport=TCP;handler=dum>
To: <sip:MAC0015651be910@224.0.1.75>
From: <sip:MAC0015651be910@224.0.1.75>;tag=47876
Call-ID: 47875@192.168.100.142
CSeq: 3 NOTIFY
Content-Type: application/url
Subscription-State: terminated;reason=timeout
Event: ua-profile;profile-type="device";vendor="Yealink";model="SIP-T20P";version="9.70.23.2""
Content-Length: 19

tftp://10.0.50.100/

the config files does sit in the root directory of the tftp server.

Any suggestions. I urgently need the PNP server to work with v7 firmware.

Thank you