Answer: jkl

AnswerCrossword Clue
JKLI-to-M bridge
JKL5?
JKLI-M connectors
JKLI followers
JKLLetters on a phone's 5
JKLTelephonic trio
JKLTelephone threesome
JKLI follower
JKLI-M linkup
JKLI-M link
JKLI may precede them