580 Telecommunications Services

**Exclusions/References:** - Units mainly engaged in - (a) operating and maintaining switching and transmission facilities that provide omni-directional or point-to point communications via wireless telecommunication networks are included in Class 5802 Other Telecommunications Network Operation; - (b) reselling telecommunications without operating a network are included in Class 5809 Other Telecommunications Services; - (c) producing and broadcasting television programs for pay or subscription television networks or stations are included in Class 5622 Cable and Other Subscription Broadcasting; - (d) publishing telephone directories are included in Class 5414 Directory and Mailing List Publishing; and - (e) maintaining and installing telecommunications infrastructure are included in Class 3109 Other Heavy and Civil Engineering Construction. **Primary Activities:** - International telephone network operation (wired) - Local telephone network operation (wired) - Long distance telephone network operation (wired) - Telecommunications network operation (wired) - Voice Over Internet Protocol (VoIP) Provision (Wired telecommunication-based)

**Exclusions/References:** - Units mainly engaged in - (a) operating, maintaining or providing access to facilities for the transmission of voice, data, text, sound and video using wired telecommunications networks are included in Class 5801 Wired Telecommunications Network Operation; - (b) reselling telecommunications without operating a network are included in Class 5809 Other Telecommunications Services; - (c) broadcasting television programs for pay or subscription television networks or stations are included in Class 5622 Cable and Other Subscription Broadcasting; and - (d) maintaining and installing telecommunications infrastructure are included in Class 3109 Other Heavy and Civil Engineering Construction. **Primary Activities:** - Mobile telecommunications network operation - Satellite telecommunications network operation - Voice Over Internet Protocol (VoIP) Provision (Wireless telecommunication-based) - Wireless telecommunications network operation

**Exclusions/References:** - Units mainly engaged in - (a) operating and maintaining transmission networks to provide point-to-point communications are included in Class 5801 Wired Telecommunications Network Operation; - (b) broadcasting television programs for cable systems are included in Class 5622 Cable and Other Subscription Broadcasting; - (c) maintaining and installing telecommunications infrastructure are included in Class 3109 Other Heavy and Civil Engineering Construction. **Primary Activities:** - Paging service - Satellite earth station operation - Telecommunications reselling (including satellite systems) - Voice Over Internet Protocol (VoIP) Provision (Software-based)