Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter, Two Way Telephone Splitters, Male To 2 Female Converter Cable, RJ11 6P4C Telephone Wall

Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 To 2 Modular Converter Adapter For Office Home Fax Model Cordless Phone

Sinloon Phone Jack Splitter RJ11 Male To 2 Female 6P6C Telephone Inline Coupler Telephone Extension Adapter For Landline Fax Machine 2 PCS (M/F)

Grandstream HT802 V2 2 FXS Port Aanalog Telephone Adapter (HT802-V2)

RJ11 Telephone Phone/Fax/ADSL Line Jack Coupler On-Off Switch Adapter Connector Controller