Standard male RJ-11 plugs at both ends. All four conductors go through. External Material : Plastic, Color : White Male RJ11 to male RJ11 Telephone
iMBAPrice 25 Feet RJ11 Telephone Extension Cord Phone Cable Line
Uvital Telephone Handset Cord Detangler, 1 Pack 14.7 Ft Uncoiled
moeverEX Female-to-Female Telephone Extension Cord, 25-Foot
iMBAPrice (2-Pack) 50 Feet RJ11 4C Modular Lone Telephone
Conext Link RJ11 6P4C Modular Telephone Extension
iMBAPrice 100 Feet Long Telephone Extension Cord Phone Cable Line
Uvital Telephone Handset Cord Detangler, 1 Pack 14.7 Ft Uncoiled
iMBAPrice 50 Feet Long Telephone Extension Cord Phone Cable Line
Phone Line Cord 50 Feet - Modular Telephone Extension Cord 50 Feet