On 02/08/2012 10:06 AM, Carlos Alvarez wrote:
On Wed, Feb 8, 2012 at 2:35 AM, Olivier <oza_4...@yahoo.fr <mailto:oza_4...@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.
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