This function returns the status of the local handset. This is the handset connected to the phone jack on the modem device.
Parameter: Line
Type: Integer
Description: The phone line to access.
Return value: Status
of line
Type: Boolean
Description: Return TRUE if the local handset is on-hook (not in use) or
FALSE if the handset is off-hook (in use).
dim hook_stat
hook_stat = hsp.HandsetOnHook(1)