2wire (1000-000057-000) Modem Recommendations

2Wire's DSL Filters eliminate any interference between your DSL line and analog telephone lines. The result is clear, clean lines for your telephones, fax machines, answering machines, caller ID, and analog modems. Designed for DSL and telephone service running on the same line, 2Wire DSL Filters provide 25 decibels of stop-band isolation - twice the isolation of other filters. 2Wire's patent-pending technology allows for as many as five 2Wire DSL Filters to be used simultaneously, without any degradation in telephone audio volume levels. Use one filter for each telephone wall jack in use to ensure that telephone calls and the DSL signal do not interfere with one another.??This inline filter is intended for two-line phones. It installs between the phone jack and telephone to isolate the DSL frequency spectrum from the phone line and pass the plain old telephone signal (POTS) through the second line.