<br><br><div class="gmail_quote">2009/3/13 Andrew Thomas <span dir="ltr"><<a href="mailto:andy@datavox.co.uk">andy@datavox.co.uk</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I think I understand what you mean now. The biggest difference between<br>
CLI and ANI is that ANI can't be blocked/withheld (like you can with CLI<br>
by using 141). It also uses different signalling. This is mainly used<br>
by law enforcement agencies to trace calls etc.<br>
<br>
So, you want the number - regardless of what the user dials.<br>
<br>
I presume you are some sort of 'carrier' then. You'll be lucky to get<br>
the information otherwise as it throws up all sorts of privacy laws (ie.<br>
you have to have a damn good reason for wanting it).<br>
<br>
BT are the main people to ask I suppose (unless your calls go through<br>
another main carrier).<br>
<br>
I'm not even sure if ANI signalling is implemented in Asterisk - one for<br>
the config file writers ;).<br>
<br>
Cheers<br></blockquote><div><br>I am sure of one thing that i can do a sip trunk with ANI in our billing system, not sure how it works, but the option is there ;) <br></div></div><br>