This telephone splitter is the most commonly used in home or office setting when sharing one line to two phones. The RJ12 plug goes into the wall jack and the opposite end accepts your telephone line cords.
Q: What is the difference between an RJ11 and an RJ12 connector?
A: Both connectors are the same size and appear the same. However looking at the contacts an RJ11 will only have 4 contacts. An RJ12 will have 6 contacts.
Q: What are the terms 4P4C 6P4C and 6P6C referring to?
A:
4P4C: 4 Position 4 Conductor ( RJ22) - used for Telephone Handset cables.
6P4C: 6 Position 4 Conductor (RJ11) - used for ADSL telephone and modem cables.
6P6C: 6 Position 6 Conductor (RJ12) - used in System phones.
Q: Which adapter or splitter should I use. Reverse or straight?
A: Newer phones can use a straight or reverse pinned line cord. If you’re unsure of the age of your phone a reverse pinned cord will work with any age phone
