e/Narrowband modem

Information
has gloss	eng: In telecommunication, a narrowband modem is a modem whose modulated output signal has an essential frequency spectrum that is limited to that which can be wholly contained within, and faithfully transmitted through, a voice channel with a nominal 4 kHz bandwidth.
lexicalization	eng: Narrowband modem
instance of	(noun) (from a combination of MOdulate and DEModulate) electronic equipment consisting of a device used to connect computers by a telephone line modem