Just a Guy Trying to Make a Living

brothertruffle880

System Admin

Robert

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I'm trying to resolve WHY the same 4P4C connector has two or three different names. &nbsp;This designation group doesn't make any sense! &nbsp;Someone must know.
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Please clarify!!! &nbsp;People are referring to them as RJ9 and RJ22. &nbsp;How are these NOT official designations?<br>Bigger question: what are the official RJ designations?<br><br>
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I see the terms RJ9 and RJ22 used interchangeably.<br>What are the differences? they seem to be the same.
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I see the terms RJ9 and RJ22 used interchangeably.
What are the differences? they seem to be the same.

Phone Headset cable Question: Are RJ9 and RJ22  the same?

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.