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This site was created as a place to share stories, tips, and troubleshooting help with ShoreTel/Mitel systems. ShoreTel/Mitel is obviously the MOST exciting VoiP platform on the market right now, and we realized there was no centralized place to discuss this platform, but now there is. Please feel free to join and share your experiences.

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  • Shoretel phones using CAT 3 cabling?

    Anyone ever run your Shoretel phones over CAT 3 or does it require CAT 5? I have ours running over CAT 5 with the PC's connecting through the phones. The problem I'm having is we were sold Adtran 10/100 POE switches & this has now slowed down my gigabit PC's. We still have our old phone lines in all the offices which are CAT 3 & I tested it today with one IP230 phone and it connected and worked just fine.

    Can you run the IP phones on CAT3?

  • #2
    you physically can with some distance limitations, however it is not recommended. I do have 4 or 5 running in our offices where I just didn't want to have new cables pulled and for well over a year they have ran just fine.


    • #3

      If you lock the ports down on the switches to 10MB you should be fine.

      I however, would not do it, except in emergency.

      having an additional cable run to each spot is really less expensive than one would think.


      • #4
        We are currently running a couple dozen low usage IP110 wall phones (house phones, etc) over cat3 with the ports locked down to 10 MHz. Have had no complaints.