Profile

Every data request in ZigBee is sent (and received) on an Application Profile. Application Profile IDs are 16-bit numbers and range from 0x0000 to 0x7fff for public profiles and 0xbf00 to 0xffff for manufacturer-specific profiles. Use a public profile, like Home Automation or Commercial Building Application if you are anticipating needing interoperability with other companies' products. Otherwise you can use a manufacturer specific profile.

EETimes Article about Profiles