Aastra AastraLink Pro 160 Administrator's Manual page 115

Configuring AastraLink Pro 160 System and Network Parameters
Configuring System Settings
For example, saving a valid country and timezone denotes that the system
is configured, setting no country and timezone denotes the system is not
configured, and the greenfield configuration via the Administrator TUI is
re-enabled for the next phone to register.
This feature is intended for the use of resellers for the pre-configuration
staging of an AastraLink system prior to shipping to end-customer site.
Please contact Aastra Customer Support for additional information
regarding the specific use of this pre-configuration administrator login
facility.
Each of the above features are described in the following paragraphs.
41-001190-02 Rev. 01, Rel. 1.2 4-5