InLine Twist-Stop for Telephone Handset 4P4C Plug / Socket, InLine, 18890L

The InLine Twist-Stop for telephone receiver 4P4C male / female (model 18890L) is an inline adapter with RJ-10 connectors on both ends, designed to fit corded telephone handsets. Its transparent housing allows visibility of internal wiring while providing a simple mechanical solution that reduces strain and prevents the handset cable from twisting during use. The adapter is compatible with standard 4P4C telephone connections and is suitable for home and office telephone setups.

Advantages

The transparent RJ-10 inline adapter improves cable longevity by preventing twists and tangles, and its male/female 4P4C connectors make installation straightforward without special tools. Because it matches standard telephone handset wiring, it maintains connection reliability and helps avoid intermittent faults caused by bent or stressed cords.

Suitable for

• Repairing or replacing a handset cable connection with RJ-10 (4P4C)
• Preventing twisting on corded desk and wall-mounted telephones
• Use in home telephone sets and small office telephone systems

Key specifications

• Brand: InLine
• Model / MPN: 18890L
• Connectors: RJ-10 (4P4C) male / female
• Colour: Transparent
• EAN: 4043718096008
• Category: Cable interface and gender adapters

How to use

Disconnect the handset cord from the telephone or handset, align the RJ-10 plug and socket, then insert the male end into the telephone or handset receptacle and connect the female end to the handset or cord. Ensure the connector clicks into place for a secure fit. No additional tools are required. If the cord remains twisted, rotate the handset connection gently while ensuring the adapter stays seated.

Recommendations

Use this adapter with corded handsets that employ 4P4C (RJ-10) wiring. Avoid excessive bending near the connector and inspect periodically for wear; replace the adapter if contacts become loose or the housing cracks.