Nextel — Updated

By the late 2000s, reviews became increasingly negative as the merger with Sprint caused service integration issues:

Primarily served business and field workers (construction, police, transport) due to its durable phones and efficient team-wide communication. nextel

Its most iconic feature was the signature beep sound (or "chirp") that preceded instant communication at the push of a button. By the late 2000s, reviews became increasingly negative

Long-term users eventually reported frequent dropped calls and network instability as the system aged. Current Status By the late 2000s