A

A-GPS (Assisted GPS) | A2DP (Advanced Audio Distribution Profile) | AAC (Advanced Audio Coding) | Accelerometer  | Airplane mode | Alarm Clock | Alphanumeric  | AMOLED display (Active-matrix organic light-emitting diode) | Analog | Android | Antenna  | APN (Access Point Name) | Audio jack  | Auto-focus  | AVRCP (Audio/Video Remote Control Profile)

B
Band | Bandwidth  | Bar | Base Station | Bit  | Bluetooth  | bps (Bits per Second) | Broadband  | Browser  | Byte

and so on..