atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Cabling Telephones Systems Wiring 8P8C to 4P4C ???

Do yourself a favor and make a small converter box out of a 2 port surface mount box.

Put an 8p8c jack and a 6p4c or 6p6c jack in it

Do the cross connections in the box and use a 1 foot patch cord and a standard phone cord.

Keep in mind that phone cords reverse so wire it accordingly. Make sure it works with off the shelf cords to limit confusion down the road