[vel0city]

Its a common feature for PBX'es to rewrite their outgoing caller ID on forwarded calls to match the origin caller ID. Say you've got an office desk phone that you have set to forward to your cell phone while you're out. Someone calls your desk phone, it forwards the call to your cell phone, what caller ID should be displayed? Technically the call to your phone is coming through your desk phone (well, your office's PBX), but doing that would mask who is actually calling. So the PBX rewrites its caller ID info to appear to be as the origin when it calls your cell phone.

This is technically spoofing caller ID, but is clearly not fraud.

[rusk]

That’s not spoofing in principal though is it? This just reinforces my point that its very easy to do this with ordinary equipment. There isn’t really any kind of technical safeguards against this stuff, probably just for the convenience of this kind of stuff.

[vel0city]

It is in the literal sense spoofing caller ID and using the same tech you earlier claimed was clearly illegal.