Leased Lines historically have been used as reliable, resilient internet and site-to-site data connections.租用线路在历史上被用作可靠的，弹性的互联网和站点对站点的数据连接。 The main benefits have been security, reliability, SLAs, private network and flexible speeds.主要好处已安全性，可靠性，辅助，私人网络和灵活的速度。 Leased Lines were also known for high installation charges, long installation times, hefty monthly fees and unreasonable contracts.租用线路也被称为高安装费，只要安装倍，大幅每月收费和不合理的合约。 With the advent of cheap ADSL connections, Leased Lines have become as relevant as dinosaurs except for the most demanding businesses, especially when you can bond与的来临，廉价的ADSL连接，租用线路，已成为相关的恐龙，除了要求最苛刻的企业，尤其是当你能够债券 multiple ADSL lines to get reliable broadband多重的ADSL线路，以获得可靠的宽带 at a fraction of the cost.在一小部分的成本。

Today I had a call from a leased line provider in Kolkata.今天，我有一个呼叫从租用线路提供商在加尔各答。 They are offering 256 Kbps for Rs.他们是提供256 kbps的在RS 。 11, 000 per month (contracted on yearly basis) and with a hefty one time installation charge (at least 3, 50,000). 11 ， 000每月（合同的基础上，每年） ，并大幅一时间，安装费（至少三，五万） 。

Compare this to my dual ADSL connections with speed of 1Mbps & 256 Kbps respectively and costing Rs 3500 and Rs 750 respectively, a total of Rs 4250 for over 1 Mbps download and 512 Kbps upload bandwidth.比较这是我的双ADSL的连接速度每秒1 M ＆ 256 Kbps的分别和成本计算的RS 3500和RS分别为750 ，共有4250卢比，为超过1 Mbps的下载和512 kbps上载带宽。 I have used the two connections to get我用两个连接，以获得 reliable broadband at a fraction of the cost可靠的宽带的一小部分费用 of leased lines.对租用线路。

With ADSL bonding your bandwidth becomes truly additive.与ADSL的粘接您的带宽成为真正的添加剂。 However it requires support from your ADSL provider.不过它需要支持，从您的ADSL的供应商。

We use the two我们使用2 ADSL connections for load-balancing and transparent fail-over ADSL的连接，负载平衡和透明的故障排除 for reliability and supporting dozens of demanding users.可靠性和支持几十个用户的要求。

However if your business needs very high bandwidth like 10Mbps or more (call center or web hosting for example) then leased line is your only option.但是，如果您的业务需求非常的高带宽一样，每秒10 MB或更多（呼叫中心或网页主机为例） ，然后租用线路是你唯一的选择。 However be prepared to pay exorbitantly.不过，愿意付出exorbitantly 。