Digital Subscriber Line DSL (Digital Subscriber Lines) Internet connections use existing standard telephone equipment to provide Internet to consumers. By utilizing a different frequency than voice calls, DSL subscribers have the ability to use their Internet as well as talk on the phone at the same time. This is unlike previous connections supplied by Internet Service Providers that required a phone line (standard or digital) to be used solely for that purpose. DSL encompasses many technologies such as ADSL, SDSL, HDSL, VDSL. The standard DSL type of service is ADSL and the average speed ranges anywhere from 384 Kbps download to 6 Mbps download. Let this Houston DSL Provider service all of your needs.