What are your (2) General settings

Here are mine :
ESN = 8 digit alpha numeric
CAI Revision = 1
13K/EVRC/8K
13K Vocoder
SCM = 10101010
Lock code = 4 numeric digits
Slote mode = Yes
Slot index = 3

I am interested to see if yours is the same as mine with reference to the continuous crackling noise that I'm getting.

I also find out that my Bell guy didn't quite program my phone as well as yours did. The "Home SID" that I mentioned earlier, I believe he just left it at "4139". Because I found by googling that this SID belongs to Sprint in the US.