Intenet Access Technologies in Srilanka

Internet access Technologies	Broadband	Narrow-band	Description
ADSL	Yes		Uses typical twisted pair cable that come home. Maximum downstream up to 8 Mbps. Divide the voice and data signals on the telephone line into three frequency bands.
Internet Leased Line	Yes		Internet leased lines are usually available at speeds of 64k, 128k, 256k, and 512k, T1 or E1). Any speed required. Permanently connected to the other
Optical Fiber	Yes		Technology which bring fiber step closer to the subscriber. In Sri Lanka vastly used in large organizations. Can go up to speed of up to 1 Gbps
HSPA	Yes		Supports data rates up to 14 Mbit/s in the downlink and 5.8 Mbit/s in the uplink. In Sri Lanka do not provide unlimited packagers.
Wi-Max	Yes		Can go for over a much greater range.  Point-to-multipoint last-mile internet access. Can go up to 11.3 Mbps. Good solution of people who cant get ADSL
LMDS	Yes		LMDS offers a microwave solution with a reduced cost per link. It transmits in a point to multi-point fashion over a wide coverage area.  LMDS channel is capable of 45 Mbps downstream.
CDMA	Yes		Can achieve maximum capacity of 2Mbps. Popular as wireless internet access technology in Sri Lanka.
Wi-Fi	Yes		Based on the IEEE 802.11x standard and transmitting in unlicensed spectrum at 2.4 GHz. support data rates up to 54 Mbps.
Dial-up		Yes	Uses the facilities of the public switched telephone network (PSTN). Use same frequency voice band of 0- 4 kHz. Few years ago very popular and only can have 56 kbps.
ISDN		Yes	Much faster speed of 256 kbits/s. But not considered as broadband. Not popular because had to use separate equipments.
WAP		Yes	Most use of WAP involves accessing the mobile web from a mobile phone. Can’t get much capacity through this wireless mobile technology.
GPRS		Yes	Can achieve maximum speeds of up to 9.6 kbps. This is mobile wireless technology.  Mainly used   for web browsing.