[rootsudo]

This can also be done on CDMA via Qualcomm QXDM and qCAT for logging, enabling you to just have a single cell phone, a laptop and some scripting in QXDM to log.

Of course this would mean you have access to unlicensed Qualcomm software, know a bit about interfacing with the radio of CDMA phones and qCAT will correctly parse it to meaningful data.

On the other hand, you can also log numbers being actively dialed and even intercept text messages on the SMS paging channel if you happen to have the correct UM/AN on the phone (ESN/MEID not needed)

But with the eventual shut down of CDMA, this sort of phreaking is long lost and over.