Does the RPS accept variables?

[Jordan]

I'm trying to provision against a server that requires an address like:

http://<server address>/001565123456.cfg?pass=1234

I can successfully provision a single handset by entering the mac address as above but is there a way to use a server address like:

http://<server address>/$mac.cfg?pass=1234

Or a way to define the password separately so that the handset requests its configuration file as part of the normal process.

I have looked through the User, Admin, VAR and XMLRPC manual for the RPS but could not find any reference variables accepted in server addresses.

Thanks,
Jordan.