Apparatus for telephone communication; apparatus for telephone networks; apparatus for transmitting data by the telephone network; apparatus for transmitting data via the telephone; apparatus for transmitting messages via the telephone; computer apparatus for the management of telephone calls; computer apparatus for the transmission of telephone calls; cordless telephone apparatus; cordless telephones; digital telephone sets; digital telephone switching apparatus; electronic telephone data communications apparatus; electronic telephones; image display telephones; multifunctional telephones; telephone appliances; telephone call management apparatus; telephone call management systems; telephone call monitoring apparatus; telephone handsets; telephone handsets for domestic use; telephone handsets incorporating microphones; telephone installations; telephone modems; telephone security instruments; telephone sets; video door telephone apparatus; video door telephone installations; video telephones; wire telephones; wireless telephones; apparatus for scanning the retina for the security identification of persons; apparatus for use in security control; automatic access security apparatus; closed circuit television security apparatus; controlled access security apparatus (closed circuit television); domestic security installations for buildings (electric or electronic); electric access security apparatus; electric controlled access security apparatus; electric security apparatus (other than locks) for vehicles; electric security apparatus for buildings; electric security apparatus for the detection of intruders in buildings; electric security apparatus for the prevention of theft from buildings; electric security monitoring apparatus incorporating fibre optic cables; electrical apparatus for security purposes (other than for vehicles); electrical devices for security purposes (other than for vehicles); electrical devices for security purposes in vehicles; electrical security apparatus, other than for vehicles; electrical security devices, other than for vehicles; electrically operated security apparatus, other than for vehicles; electronic components for security installations; electronic controlled access security apparatus; electronic security apparatus for use in homes; electronic security apparatus for use in offices; electronic security apparatus, other than for vehicles; electronic security devices, other than for vehicles; electronic security equipment, other than for vehicles; electronic security installations for use in buildings; installations (electric or electronic) for use in security; security alarm systems (other than for vehicles); security alarms (other than for vehicles); security apparatus for processing video and/or audio signals; security apparatus for receiving audio signals; security apparatus for receiving video signals; security apparatus for storing audio signals; security apparatus for storing video signals; security apparatus for transmitting audio signals; security apparatus for transmitting video signals; security apparatus incorporating lights for use in buildings; security apparatus incorporating lights for use on the exterior of buildings; security control apparatus; security devices for doors of buildings (electric locking devices); security devices for windows of buildings; security devices for windows of buildings (electric locking devices); security installations, other than for vehicles; security surveillance apparatus; security systems for buildings; security systems for elevators; security systems, other than for vehicles; security warning apparatus; video camera security apparatus; video camera security installations; video camera security instruments; video cameras adapted for security purposes