2.5G - Creativyst(R) Glossary of developer terms.

A technology bridge between second-generation (2G), and third generation (3G) wireless cellular technologies. Researchers developed 2.5-generation technologies as upgrades to 2G approaches, 2.5G has more bandwidth than 2G but less than 3G. 2.5G uses existing 2G spectra and doesn’t require and entirely new network infrastructure. Thus it can be implemented faster and less expensively than 3G. 2.5G approaches include high-speed circuit-switched data (HSCSD) technology, a GSM extension that offers throughput of up to 38.4 Kbits per second. 2.5G also uses iDEN, GPRS, and EDGE upgrade technologies.

	A technology bridge between second-generation (2G), and third generation (3G) wireless cellular technologies. Researchers developed 2.5-generation technologies as upgrades to 2G approaches, 2.5G has more bandwidth than 2G but less than 3G. 2.5G uses existing 2G spectra and doesn’t require and entirely new network infrastructure. Thus it can be implemented faster and less expensively than 3G. 2.5G approaches include high-speed circuit-switched data (HSCSD) technology, a GSM extension that offers throughput of up to 38.4 Kbits per second. 2.5G also uses iDEN, GPRS, and EDGE upgrade technologies.
	2G 3G