Paging / Intercom squelching ACS 4.0

[nickburns31]

Looking for some assistance with an older ACS 4.0 and squelching on the paging feature. I thought perhaps it was the 5 volt volcom horns causing it so I disconnected the RJ modular plug in the ACS and intercom *70 is still squelching pretty loud. Newly wired building with CAT 5. Any ideas? Thanks in advance as always. I was thinking of trying to DSL filters...

 

[fonedude]

Are you using a paging interface? You may need a WMT-1 line matching transformer, or UPAM or UTI-1 or Valcom 2003-1.

 

[nickburns31]

I am coming right out of the RJ45 using 4 and 5 pin to the powered horns. Even with the RJ disconnected and I just use intercom *70 it still squelches....

 

[TouchToneTommy]

Please define "squelching" - what is happening? Are you making the page through the handset or through the speakerphone?

 

[nickburns31]

Through the handset... It sounds like feedback very loud and gets louder

 

[Dexman]

Squealing would seem to indicate that some phone has an active hands-free microphone turned on and audio is looping around.

A few thoughts....

Does the problem happen when initiating a page from all extensions, or one in particular?

If you were to unplug all phones at the processor, reconnect one at a time and test page, does the squealing return when a specific extension is reconnected?

Are the extensions in very close proximity to each other within their speaker phone volume controls cranked all the way?

I "FEATURE 00"

http://dexman.webs.com/