Telephone switchboard services64214200-1Telecommunications services
Communication land-line rental64214400-3Telecommunications services
IP telephone services64215000-6Telecommunications services
Electronic message and information services64216000-3Telecommunications services
Electronic message services64216100-4Telecommunications services
Electronic data exchange services64216110-7Telecommunications services
Electronic mail services64216120-0Telecommunications services
Telex services64216130-3Telecommunications services
Telegraph services64216140-6Telecommunications services
Electronic information services64216200-5Telecommunications services