A designation indicating that phone operates on only one frequency band. A single-band phone is usually a CDMA or GSM digital phone that operates only in the 1900 MHz (PCS) frequency band.

Whether you're traveling internationally or just looking to change your cell provider, an eSIM is an easy way to add multiple ...

Silicon Laboratories has developed what it is calling the industry's most integrated, highest performing single-chip phone for the GSM ultra low cost handset (ULCH) market. Dubbed the Si4901 AeroFONE ...