3 Pack, White - 2 Line Phone Splitter - 3 Way Telephone Line

Uxcell Phone Jack Splitter 6P4C 5 Way Socket Adapter Telephone

Insignia - Phone Splitter - White

14” Structured 14 Wiring Enclosure Combo Kit Voice/Data/Video

3-Way Phone Line Splitter Adapter Telephone Splitter Phone

Allows the use of two handsets on one telephone. Ideal for telephone marketing training purposes. Black10 PackYes this is designed to plug into the telephone and have two handsets plugged in. This will work even on digital sets as the signal going to the handset is analog.The plug on the cable is 4P4C, some call it RJ9 or RJ22.

New Tech Industries - Splitter for phone handset

Phone Jack Splitter 6P4C 3 Way Socket Adapter Telephone Line

3-Way Phone Line Splitter Adapter Telephone Splitter Phone

Antfly 3 PCS 2 Wire, 1 Line DSL Filter, with Built in Splitter

AMPCOM RJ11 Telephone Converter 1/2/5/10 pcs RJ-11 Classic 6

Uxcell Phone Jack Splitter 6P4C 5 Way Socket Adapter Telephone

Antfly 3 PCS 2 Wire, 1 Line DSL Filter, with Built in Splitter

Insignia - Phone Splitter - White

Antfly 3 PCS 2 Wire, 1 Line DSL Filter, with Built in Splitter