Introduction To Mobile Telephone Systems-1G, 2G, 2 5G, and 3G Wireless Technologies and Services | Cellular Network | 3 G
![0G (Mobile Radio Telephone System) Pre-cellular system Half-Duplex communication Use in vehicles Only 25 channels available 20Km range. - [PPTX Powerpoint] 0G (Mobile Radio Telephone System) Pre-cellular system Half-Duplex communication Use in vehicles Only 25 channels available 20Km range. - [PPTX Powerpoint]](https://reader012.cupdf.com/reader012/slide/20190424/551a4c5e550346a4248b5f23/document-2.png)
0G (Mobile Radio Telephone System) Pre-cellular system Half-Duplex communication Use in vehicles Only 25 channels available 20Km range. - [PPTX Powerpoint]
Advanced Mobile Phone System or AMPS is the Analog Mobile Phone System Standard | 4 G | General Packet Radio Service
![Telephone Walkie-talkie Two-way Radio Digital Mobile Radio, PNG, 1000x1000px, Telephone, Amateur Radio, Communication Device, Telephone Walkie-talkie Two-way Radio Digital Mobile Radio, PNG, 1000x1000px, Telephone, Amateur Radio, Communication Device,](https://img.favpng.com/1/25/21/telephone-walkie-talkie-two-way-radio-digital-mobile-radio-png-favpng-XAd5HbtwD0ai3VeiHJsg7vZvE.jpg)