Aastra Telecom SIP 57I - Manual (Page 475)

Encrypted Files on the IP Phone
41-001160-00, Release 2.1, Rev 04 7-5
Encrypted Files on the IP Phone
Encryption and the IP Phone Example 7
Use the "-v" variable to display version number.
C:\> anacrypt -v
The encryption tag format supported by this anacrypt is: Tuzo v1.3 rev1
The corresponding IP phone firmware build is: 20051017