From Zenitel Wiki
The station can operate in different modes, depending on what kind of server the station should register to. Choose one of the links below according to what mode you need to configure.
Station specific configuration for the ECP-AA1:
Restore Factory Defaults and Software Upgrade
- Restore Factory Defaults
- Upgrade via the station web interface
- Upgrade using the IMT tool
- Automatic Software Upgrade (SIP mode only)