TD1232 noise problem

[enita]

Hello,
I have a dual cabinet 1232 configuration . The problem that i face is that on some of the extensions (not all) on calls outside and inside the system i have noise exactly like the one that i have when i plugg a analog phone to the data signal pair of a hybrid extension.

I also noticed the noice to apear as the temperature room exceed 30 degrees Celsius.At lower temparatures the noise is smaller or non existent.
Could be a problem with one of the cabinets mainly due to overheating or with the cable wiring?

 

[home1234]

Try to see if the problem come from the fist cabinet or the second one. By disconecting one of them. After that try the extension module or line.