Tonight I had one sitting in the phone cradle when it suddenly started making strange noises and whistling

Buzzing noise that is the phone

I bought this phone set about 6 months ago, when I recently changed my phone service provider the phone started having loud static and feedback noise

Annoying little phone all nite long makes noise if u dont check messages and ringer and moniter are not loud at all

These have quite a bit of static noise.

nice phone no noise

Broke after 3 months, began to make a really loud crackling noise, replaced them with the old phones I had and they worked fine, not worth it.

but now I get a horrible squealing noise second time an AT&T phone set has ended up doing this.

These phone are very clear, no noise ,nice ring tone