0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
A bit transferred from a source user to a telecommunications system for delivery to a destination user. Note 1: User information bits do not include the overhead bits originated by, or having their primary functional effect within, the telecommunications system. Note 2: User information bits are encoded to form channel bits.