//T1
document.writeln('<DIV> 	<dd>Also, T-1 <a href="../c/default.asp?name=carrier">carrier</a>, a high speed, high   <a href="../b/default.asp?name=bandwidth"> bandwidth</a> 		<a href="../l/default.asp?name=leased_line"> leased line</a> used for <a href="../d/default.asp?name=digital_signal"> digital</a>   transmissions of <a href="../d/default.asp?name=data"> data</a> or voice over 24 64-<a href="../k/default.asp?name=kbps">Kbps</a> channels via two   <a href="default.asp?name=twisted_pair_cable"> twisted pair wires</a>. Each of the 64-Kbps channels can be configured to carry separate voice or data   <a href="default.asp?name=traffic">traffic</a>.   Most of the telecommunications companies allow you to buy some of these individual channels,   known as <a href="../f/default.asp?name=fractional_t1">fractional T1</a>. T1 supports   <a href="../d/default.asp?name=data_transfer_rate"> data   transfer rates</a> of 1.544 <a href="../m/default.asp?name=mbits_sec">Mbps</a>, which is not enough for full-screen,   full-motion video that requires at least 9.6 <a href="../m/default.asp?name=mbits_sec">Mbps</a>.   T1   lines are popular for connecting businesses to the <a href="../i/default.asp?name=internet"> Internet</a>.   ISPs (<a href="../i/default.asp?name=internet_service_provider">Internet   service providers</a>) also use   T1 lines to connect to the Internet <a href="../b/default.asp?name=backbone"> backbone</a>.   T1 lines are sometimes   referred to as <i><a href="../d/default.asp?name=ds">DS</a>1</i> lines. The monthly cost   of using a T1 line is typically based on a distance.   <br/><br/><br/> 		<i><b>See also:</b></i> 		<p class="SeeAlsoP"><a href="default.asp?name=t2">T-2</a> 			<b>|</b> 			<a href="default.asp?name=t3">T-3</a></p> 	</dd> </DIV>');