[OT] How to get calling number when CallerID reports "unknown"

[Jared Watkins]

Larry Cook wrote:

> Okay, this is way off topic.  My appologies.  I only ask it here 
> because it's about phone systems and the legal system and I figured 
> there are a few of you that might be able to provide a little info.
>
> How do I go about getting the calling number from the phone company 
> when my CallerID reports it is "unknown"?  Actually, it's my office's 
> internal phone system reporting it as "External Call - Unknown 
> Number", but since I see all other numbers I assume this has something 
> to do with CallerID blocking.
>
> I doubt I can just give the phone company a call.  I probably need a 
> lawyer. And what justification do I need?  And what type of lawyer do 
> I need?  Are there any websites that you recommend?  A Google just 
> gave me lots of stuff on CallerID and telemarketers and I was getting 
> no where wading through it.
>
What you want is called ANI...  It's been a long time since I did much 
tinkering with the phone system (cough) but I don't think this is 
commonly available to the public.. if you are only trying to resolve a 
specific  incident I'm sure they would work with you if it's part of 
some legal action.

Jared