Nextel iDEN network
Sprint Nextel sent its iDEN push-to-talk network to the grave in June after more than a year of warnings that this would happen. The iDEN system came from Motorola and formed the basis of Nextel's network, which was begun in 1996. The network ran over spectrum from small regional carriers and frequencies for Motorola's two-way radios. The company built a strong business through its push-to-talk feature, which let users talk to each other instantly without having to first answer a ringing phone (Steve Lawson, IDG News Service). Sprint gave Nextel’s name the boot, too.