It will take you about five minutes to learn how to use one. There's a good picture of one in use down below. AbleComm sells blocks with pre-attached cable and male connector, to save time and avoid installation errors. The wire gets connected, and excess wire is chopped off. It will take about five minutes to learn how to use it.
Several models are available.
The great photo above is from Mark Henrichs. For terrific advice on installing wiring for phones, video, audio and more, see his Website . Hard-core phone guys use racks, wire guides, patch panels, etc, like this gear from Hubbell. Most people route the 25-pair cables from the bottom of expansion modules on the front panels of the digital 816 and 1232 control units. This photo shows an installation by Andrey Andreanov, a computer engineer, Website designer, and Panasonic phone system installer in Moscow.