asterisk users - Aug 2005 - Any success with Polycom DHCP VLAN discovery?

Greetings.

Has anyone made this work with BootROM 2.6.2 and app 1.5.2?

I've tried sending DHCP options 128, 144, 157 and 191 containing a 
single digit (the VLAN ID) with the phone's 'Fixed' setting for DHCP
VLAN
discovery. Different DHCP data types don't seem to help, as I've tested 
with raw bytes, ASCII and 16-bit unsigned ints to no avail.

Setting the phone's option to 'Custom' and using option 129
hasn't worked,
nor has enabling the CDP option (totally different, I realize).

Any suggestions?

Thanks,
Tim