How to Swap out a T1 Voice Switch Shoretel

Short one today. I’ve been having a few issues with phone calls here, so after getting a new circuit and all that the problem didn’t resolve, so i’m thinking it’s our T1 switch. I wanted to make a few notes on how to go about swapping them out.

 Step 1 – First set up the switch in ShoreTel Director. You don’t need a new set of trunk groups or anything, just the new switch.

Set your switch up however you normally do, personally I use static IP addresses for my switches and program them through the serial port. Honestly you could set up DHCP reservations in your DHCP server too. You might have to enter the server IP through the console, but when it boots into the server the first time the server actually changes this, so it might not be necessary (I’ve seen it do it on a packet sniffer and yes it kept changing it to the wrong IP).

Step 2 – Make sure the T1 settings are the same on both switches as you are setting up a replacement, and you’ll be hooking the existing T1 into the new switch, not adding any additional capacity. It’s also not a bad idea to check with your phone company on these settings if you can.

You can just set up the first Trunk in the T1 switch and use “Fill Down”. Make sure they are set up on the existing trunk group, again it’s best if you don’t make a new trunk group as you’ll have to re-enter everything.

Step 3 – When you’re ready all you should have to do now is move the T1 from one to the other. I always like to unplug the old switch just to make it show “offline” and not “D-Channel Down” as that can freak out other people getting into the Director.

I like to leave the old settings in place in Director for several days when I do this just to make sure everything is fine. Once you determine the new switch works fine, just delete the old one. That’s really all there is to it.

One Reply to “How to Swap out a T1 Voice Switch Shoretel”

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