Amazon.com: AmzDeals (2 Pack) 6 Feet Black RJ12 6P6C Male to Male Straight Wired Cable, Pro Grade Data and Voice Phone Line Cord - Made in USA : Electronics
Monoprice Landline Telephone Cable - 7 Feet - Rj12(6p6c) Straight For Data : Target
Know the Difference- RJ9, RJ11, RJ12, RJ45, RJ48 & Pinout
Adapter – Modbus RJ12 to Terminal Block - Multitel
Amazon.com: RJ12 DEC 6P6C Modular Plugs with Left Latch Offset Tab (12 pack) : Industrial & Scientific
RJ45 CAT5 ETHERNET 8P8C 8-PIN to RJ12 RJ11 6P6C 6-PIN PHONE NETWORK MALE CABLE ADAPTER FX464 - Walmart.com