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 as the merger with Sprint caused service integration issues: nextel

Nextel as a carrier no longer exists for general consumers, but its legacy lives on: When Phones Were Fun: NEXTEL Its most iconic feature was the signature beep

Data capabilities were described as slower than 1990s dial-up internet. Used the iDEN network , which was excellent

Following the Sprint merger , customers reported a sharp decline in support quality and helpfulness.

Used the iDEN network , which was excellent for voice and PTT but struggled significantly with data speeds, becoming obsolete as the smartphone era began. Historical Reviews (Sprint-Nextel Era)

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