Looking for a RJ45 to RJ11 Coupler

[tessifay]

thread689-179159

Can anyone tell me where I can find this item? Your help is greatly appreciated.
Thanks

 

[VEBill]

RJ45 is 8P8C (often used for Ethernet), and RJ11 is 6P2P (often used for POTS). What's the application? If you're using Cat 5/6 wiring for POTS, most installers would simply reterminate. If you must have an adapter, you may have to make an adapter cable (with dual female couplers as required).