Standard setup for voice over Cat5 FREE cabling and networking Helpdesk
 Question by Michael Taranto posted 11 Aug 2002
 Standard setup for voice over Cat5
Your site is excellent!! It's been very helpful in planning the cabling of my house.

My question is....
Is there are a standard setup for voice over Cat5.
Which pair is used? What is the pin configuration?
Is there a name for a cable that plugs the phone into an RJ45 on the wall?
 Answer by Dmitri Abaimov posted 15 Aug 2002
Dear Michael,

The analog voice (standard telephone line) has to be terminated on pair #1 (pins 4 and 5). This way it is possible to insert the telephone plug (RJ11, RJ12) into RJ45 (8-position 8-conductor) jack and pick up the required pair.

Thank you for the warm feedback about the site!

Dmitri Abaimov, RCDD

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