[asterisk-users] Automatic Number Identification and anonymous calls

[Olivier]

2012/2/8, Kevin P. Fleming <kpfleming at digium.com>:
> On 02/08/2012 10:06 AM, Carlos Alvarez wrote:
>>
>> On Wed, Feb 8, 2012 at 2:35 AM, Olivier <oza_4h07 at yahoo.fr
>> <mailto:oza_4h07 at yahoo.fr>> wrote:
>>
>>     I always thought that ANI (Automatic Number Identification) could not
>>     directly be set or changed by end users.
>>     In this experiment, it seems that if an end user calls anonymously,
>>     the ANI is also hidden to the receiving party.
>>
>>
>> I never work with analog lines, but I do believe that anything less than
>> a PRI would have the blocking done at the telco end before you get it.
>
> Mostly correct; ANI is only delivered over ISDN, SS7 and *some* E&M
> trunk circuits. Analog circuits have no ability to transport ANI.
>
> --
> Kevin P. Fleming
> Digium, Inc. | Director of Software Technologies
> Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype: kpfleming
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> Check us out at www.digium.com & www.asterisk.org
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>                http://www.asterisk.org/hello
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>

Thanks for telling ANI feature can't come along analog lines.

I did another test towards an ISDN BRI line and got the same results :
ANI and CID are either both displayed or both hidden at the same time.

Comments are welcome.