Explain IDEN Protocol interview question

iDEN(Integrated Digital Enhanced Network)

• A wireless technology for Motorola
• It has the capabilities of digi-cellular phone, 2 way radio, alphanumeric pager and data modem / fax modem in a single network
• Operational bands are 800 MHz, 900 MHz and 1.5 GHz
• iDEN is based on TDMA(Time Division Multiple Access) and GSM architecture
• For voice compression it uses Motorola’s Vector Sum Excited Linear Predictors vocoder
• For delivering 64KBPS over a 25 KHz channel, it uses QAM modulation.
• iDEN is designed to serve the mobile user for accessing information quickly without carrying several devices.