That requires equipment! Seriously though, the only picocells I know of that are "open" enough to turn into a poor man's stingray are 2g-only, and that will show up in the phone's connectivity status icon, and it assumes cell phone use. How very 21st c.
Now that most people have forgotten their desk phone, weak security in passwords and feature access is probably worse than it has ever been in enterprise CPE. DISA/DOSA is an end-user feature, so it's not as if you are hacking the PBX configuration. It's more like hacking an individual user's voicemail. Plus it has that retro cache of "what we were hacking before we had computers to hack."
Now that most people have forgotten their desk phone, weak security in passwords and feature access is probably worse than it has ever been in enterprise CPE. DISA/DOSA is an end-user feature, so it's not as if you are hacking the PBX configuration. It's more like hacking an individual user's voicemail. Plus it has that retro cache of "what we were hacking before we had computers to hack."
Get out your old back issues of 2600.