A Telephone is a commercially available electronic product whose primary purpose is to transmit and receive sound over a distance using a voice or data network.
| List Options | Option Definition |
Unit of Measure |
|
|---|---|---|---|
| Analog telephone | A Telephone or component of a Telephone system that ultimately converts sound into analog waveforms for transmission through the Public Switched Telephone Network (PSTN). | None | |
| Voice over internet protocol | A Voice over Internet Protocol (VoIP) Telephone is a telephone or component of a Telephone system that converts sound into Internet Protocol data packets for transmission through an Ethernet connection. | None | |
| Hybrid | A Telephone or component of a Telephone system that has the ability to ultimately convert sound into both analog waveforms for transmission through the PSTN and Internet Protocol data packets for transmission through an Ethernet connection. | None | |
| Cellular | A Telephone that converts sound into multiple-access (e.g., Code-Division Multiple Access (CDMA), Global System for Mobile Communications (GSM), and fourth generation long term evolution (4G LTE)) packets for transmission through a cellular network. | None | |
| Other | Other | None | |
| Unknown | Unknown | None | |
| None | None | None | |
| Not applicable | Not applicable | None |
