Although these phones are intended to prevent immodesty, some vendors report good sales to adults who prefer the simplicity of the devices.Some phones are approved for use by essential workers (such as health, security, and public service workers) on the sabbath, even though the use of any electrical device is generally prohibited during this time.In 1983, the Dyna TAC 8000x was the first commercially available handheld mobile phone.In 1991, the second-generation (2G) digital cellular technology was launched in Finland by Radiolinja on the GSM standard.Modern mobile telephone services use a cellular network architecture, and, therefore, mobile telephones are called cellular telephones or cell phones, in North America.In addition to telephony, 2000s-era mobile phones support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games, and digital photography.
The first two commercially available technologies billed as 4G were the Wi MAX standard, offered in North America by Sprint, and the LTE standard, first offered in Scandinavia by Telia Sonera.
This was followed by 3.5G, 3G or turbo 3G enhancements based on the high-speed packet access (HSPA) family, allowing UMTS networks to have higher data transfer speeds and capacity.
By 2009, it had become clear that, at some point, 3G networks would be overwhelmed by the growth of bandwidth-intensive applications, such as streaming media.
Mobile phones offering only those capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones.
The first handheld mobile phone was demonstrated by John F.
A feature phone has additional functions over and above a basic mobile phone which is only capable of voice calling and text messaging.