Description: A C structure containing the following fields: typedef struct { ubyte old_password[8]; ubyte new_password[8];/ } jetsend_change_contact_password_t; where ubyte is an unsigned byte (0-255). Additional information: Controls access to the JetSend processing subsystem. Password absence/presence determines whether the device will allow a session to be established. The following C data structure contains the relevant fields (described in subsequent paragraphs): typedef struct { unsigned char old_password[8]; unsigned char new_password[8]; } Whenever the password is disabled (i.e., is zero-filled for its entire length), the device is indicating its willingness to allow session establishment. Whenever the password is enabled (i.e., has one or more non-zero-filled values), the device is controlling session establishment -- all in-progress JetSend sessions must supply a matching password or the device will reject the in-progress session. To disable the password, specify the matching password via the 'old_password' field and zero-fill the 'new_password' field. To enable the password for the first time, zero-fill the 'old_password' field and specify the new password via the 'new_password' field (the new password should not be zero-filled; otherwise, the password will remain disabled). To enable or change the password thereafter, specify the matching password via the 'old_password' field and specify the new password via the 'new_password' field (the new desired password should not be zero-filled; otherwise, the password will be disabled). To determine if the password is enabled, zero-fill both the 'old_password' and 'new_password' fields. If an error occurs, the password is enabled; otherwise, the password is disabled. (Specifying either an 'old_password' or 'new_password' fields greater than eight (8) bytes causes the error to be returned.)