Veteran DAW plug-in company McDSP has Futzbox--an all-in-one distortion and noise plug-in that runs in MACs and PCs under TDM and RTAS formats. Futzbox has seven sections that in various combinations produce every nuance of noise and distortion--there is even a library of Synthetic Impulse Models or SIMs that provide a choice of dozens of models of speakers from P.A.s to table radios to Hi-Fi speakers to cordless telephones to play any track's sound through.

Once I selected an old telephone for my vocal track where I wanted it to sound like an irate music fan calling into a radio station, I then selected the low pass/high pass Filter section to narrow the fidelity even more and then, in the Distortion section, I adjusted the amount and type of distortion. I could also add continuous static noise as if the caller is far away (on the moon maybe) and then simulate a flaky connection with a random on/off effect using the ultra sensitive noise gate section.