They are using ANI instead of CallerID. If they have an 800 number thya have the right to know who is calling them because they are paying for the call.
 
the *ANI*DNIS* format is known as Feature Grooup D.
 
Alex
 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joe Pukepail
Sent: Wednesday, February 01, 2006 3:47 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Blocked Callerid

Do they have an 800 number?  If so perhaps their 800 number provider is doing it via DTMF.  Search around on the internet, I believe the standard format for the DTMF is *CALLERID*CALLEDNUMBER* (or perhaps reversed).

On 2/1/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
I have been discussing an asterisk solution with a company that has a custom written dialogic based solution.
 
The issue is that their dialogic solution can read callerid from incoming calls, even if the callerid is blocked.
I have read before that Asterisk can do this, and they want me to make sure that their new system will be able to do this.
 
A quick poke around inside the zaptel source code was unproductive...
 
Any ideas?
 
PaulH
 

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