| Includes | telephones and other equipment associated with use of telephone lines. |
| Alternate Terms/Abbreviations | TTY: teletypewriter, also called TDD: telecommunication device for the deaf. Facsimiles: fax machines. |
| See | 10 17 00 for telephone specialties. 10 25 16 for modular service walls. 14 20 00 for elevators. 27 31 00 for voice communications switching and routing equipment. 27 33 00 for voice communications messaging. 27 33 26 for facsimile servers. 27 34 00 for call accounting. 27 35 00 for call management. |