I am testing provisioning of Snom 300, Snom 360 and Polycoms sharing same DHCP server.

I can have Polycoms and Snom300 provisioning after phone reset to factory default
with this dhcp.conf config.

 option tftp-server-name "10.2.0.4";

 class "snom" {
      match if substring (hardware, 1, 3) = 00:04:13;
      option tftp-server-name "http://10.2.0.4:8090/phone/profile/docroot";
      option bootfile-name "/phone/profile/docroot/snom360-{mac}.htm";
 }

Unfortunately I can not have it for both Snom300 and Snom360 as the default behaviour for these phones
is to ask for 'model-{mac}' only if the option 67 is NOT PRESENT and option 66 contains url limited only
to http://hostname:port/ - without the /phone/profile/docroot suffix.

There is no {model} tag in Snom phones - so I cannot have both 300 and 360 provisioned without manually changing
their factory setup. :( Snom is not reporting model number in DHCP queries so option 67 cannot be set dynamically in
mixed model environment.

The prefix of provisioning filename should either be configurable or be a fixed string which can be later set in option 67.
Now it is based on a model of a Snom phone which requires manual setting of settings_url.

The change should be compatible with all Snoms that are shipping right now - and with the ones that had been already
provisioned successfully at least once.

I have Snoms with firmware 4.1, 5.5 and 6.2 - all exhibiting this behaviour.