Phone squeals when overhead paging - Vodavi 30-Button XTS Telephone

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Find the main control box. It is normally fixed to the wall above a electric outlet. Try resetting it. Disconnect the power by removing the plug for 5 minutes. Wait 5 minutes for self testing and then plug it back in.

https://www.google.com/search?q=comdial+impact+phone+manual

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That is feedback. You have to either turn the speakers down, or muffle the mic pickup on the phone.

when you say intercom system, do you mean overhead paging?
YES, it can page a phones speaker or an external paging system.

Also, a 4412 can be used on a few different systems, you will need to know more info, and I would call a technician, as this might be some pretty tricky programming, especially if it is an IP Office.

Are you paging the phones, or overhead speakers?
A few things might be...the 5420 phones might not be in the paging group, so look in your hunt groups.

The speakers might also be turned down, so press speaker, then press the up arrow for louder volume.

To page internally.(using the sets) lift the handset, press your extension button (on the righthand side of the set near the handset) press 1, after the tone complete page.
To page externally,(thru overhead speakers) lift handset, press the page button(or 14) after the tone complete page.

How do you dial paging? Pressing a button or dialing a code?

THat phone can be on a few different systems, do you know what you have for a phone system?

Are you paging the overhead speakers, or paging the speakers on the phones?

Try 325. Not sure if your system admin necessarily wants this feature turned off though. In my case we don't have an overhead speaker for dedicated paging so we programmed all handsets to page through the phone speakers. Your system admin probably has your phone in a page zone if the 325 shortcut works so you might want to ask before your turn it off.

j

Which Avaya system? Do you currently have a multi zone unit installed on the paging?

If you mean intercom, as in Speaker/overhead paging, then the buttons need to be reprogrammed to access the intercom. If you mean calling from one avaya phone to another, then the system is more then likely fried. from your system press the intercom button, 61. that should give you the paging access that I think you are looking for.