Telecom equipment manufacturer Teracom today said it has bagged an order worth Rs 70 crore from state-owned BSNL to supply half a million modems, which enable computer data transmission over phone lines.

The company would provide modems to BSNL, which is looking at ramping up its broadband subscriber base in a big way, Teracom said in a statement.

Modems enable transmission of data over phone lines from one computer to another, by converting analog waves and digital signals.

Teracom will provide 'ADSL 2+ modems', a 3-in-1 device that combines the function of a high-speed DSL modem, wireless access point, and ethernet router.

The company said its modems will enable BSNL subscribers access data, voice over Internet Protocol and video facility at speeds of up to 24 Mbps, with option of WiFi, or wireless connectivity.

Teracom has to provide the modems to BSNL within four months. Earlier, it had supplied over 7.2 lakhs modems worth Rs 94 crore to BSNL.

The company has also established a network of after-sale service centres to ensure timely service to their valuable customers.

According to telecom regulator TRAI, the total broadband subscriber base in India increased by 3.17 per cent from 9.77 million in July to 10.08 million in August 2010.

Share of broadband subscription in total Internet subscription increased to 56.7 per cent in April-June with 9.47 million subscribers, TRAI said.