AT&T 1070 manual Important information for DSL users

Important information for DSL users

Continued from previous page

Use splitters to separate the high-frequency DSL signals from the low- frequency signals used by the telephone equipment. Although some splitters can be installed by end users, most DSL splitters are installed by the telephone company.

You can use microfilters at each individual phone jack or telephone set. Telephone service providers typically supply them for free to self installers. However, if you install more than three microfilters on system phones, the sound quality and advanced features’ operation may suffer. If you have more than three telephones, you will probably need to have your telephone company install the DSL splitter near where your telephone lines come into the building.

For only one or two DSL lines, install the DSL filter into the L3/L4 jack on the back of the telephone.

If your system will only use two or three telephone lines, plug a single non- DSL telephone line into the L1/L2 jack. If the lines have DSL, be sure to use the microfilter(s) on lines 3 and/or 4.

If there are two telephone lines, one of which is DSL, and both appear at a single wall jack, use a triplex adapter to separate the lines at the wall jack. If you need help doing this, visit our website at www.telephones.att.com or call 1 (800) 222-3111. In Canada, dial 1 (866) 288-4268.

If you must install a DSL line into the L1/L2 jack on the back of the telephone, use a DSL splitter.

Lines 1 and 2 share a telephone jack. If it is necessary to install a DSL line for telephone line 1 or line 2, you will need additional equipment to avoid interference. Any telephone line connected to the L1/L2 jack cannot have a microfilter. It must have a DSL splitter. A DSL splitter allows the data and voice signals to use the same telephone line without interfering with each other. Use a dual-line DSL splitter or a two-line DSL filter. If you need help

doing this, visit our website at www.telephones.att.com or call 1 (800) 222-3111. In Canada, dial 1 (866) 288-4268.

Installing a DSL splitter (not a microfilter) as close as possible to the protection block or network interface (where the telephone line enters the house or building) may resolve DSL interference. (It may be necessary to use a DSL splitter intended for outdoor use.)

Continued on next page