1 x RJ9 4P4C male to female adapter cable. Interface: RJ9 male to RJ9 female. Very suitable for all phone models that often turn off the headset, and can be used with all directly connected headset models.
eBay
ZoeRax 50PCS RJ45 Cat5e Cat6 Connectors - Pass Through Connector 30μ Gold Plated 3 Prong 8P8C Modular Plugs - 1.1mm
Aliexpress UK
Connects handset to base. Colour of the cord is White.
eBay
Hose Barb 304 Stainless Steel Hose Tail Barb Connectors 6mm 8mm 10mm 12mm T Type Y Type Pipe Fitting Pagoda Tail Barb Connector
Aliexpress UK
Model 2.5L-R9W is a short headset adapter cord with a female RJ9 headset module socket to connect with telephone headset and a 2.5mm plug at the other end to connect to a telephone’s standard 2.5mm headset jack. With this RJ9 to 2.5mm adapter cord, you may use your RJ9 telephone headset with home office phone. This RJ9 to 2.5mm adapter cord work for all the phones with 2.5mm headset jack. At the headset side, it compatible with Visbr call center headset, Plantronics headsets with RJ9 connector and many other headsets that work with Avaya, Polycom, Nortel phones. To verify if this adapter work with your headset and telephone, please send us a message with your telephone and headset brand, model. Buyer is responsible for paying any governmental taxes imposed on your purchases, including, b.
eBay
Connector With Wire For 16mm 19mm 22mm Metal Push Button Switch Reset Or Latching LED Lamp (Only Connector)
Aliexpress UK
Interface: RJ9 male to dual female ports. Size: line length 50cm.
eBay
2pin round 10A high current magnet suction spring pogo pin connector, male and female probe DC power charging magnetic connector
Aliexpress UK
Interface: RJ9 male to dual female ports. Size: line length 50cm.
eBay
JST XH 2.54mm Pitch 3 Pin Wire Connector XH 2.54mm 3P Male Plug / Female Jack Socket Wire Cable Terminals Connectors 26AWG
Aliexpress UK
Interface: RJ9 male to dual female ports. Size: line length 50cm.
eBay
HARDING heavy duty Connectors DHC-HA-003 3pin 4pin 5pin 7pin 10A Industrial plug HQ-005 16A heavy metal rectangular connector
Aliexpress UK
Interface: RJ9 male to dual female ports. Size: line length 50cm.
eBay
100Pcs 2.8mm 4.8mm 6.3mm Plug Spring Female Male Spade Cold Crimp Terminals Connector Car Speaker Electrical Wire Connectors Set
Aliexpress UK
1 x RJ9 4P4C male to female adapter cable. Interface: RJ9 male to RJ9 female. Very suitable for all phone models that often turn off the headset, and can be used with all directly connected headset models.
eBay
Male female docking Mini Quick Wire Connector Universal Compact Electrical Wiring Connectors Push-in Conductor Terminal Block
Aliexpress UK