Masking Callerid on a transfer

[support]

Hi,

About your question about the callee identifying the caller via the "header" information that the ANI is part of -- there is no header. The US telephone system only passes ANI and DNIS. The actual text information associated with an ANI is out of our control and in the hands of the carrier to which the IVR call is being made. In other words it's the callee's local carrier that uses the ANI to lookup information about who the caller was.

About your implementation of masking the caller ID, it appears to be correct as we have tested it through the following IVR code:

transfertest.php:

Code: Select all

<?php
header("Content-type: text/xml");
echo "<?xml version=\"1.0\"?>";
?>
<vxml version="2.0">
  <form>
    <transfer name="xfer" dest="tel:+1617XXXXXXX;ani=8009876543" bridge="true" connecttimeout="15s">
      <prompt>
        Transferring to 617-XXX-XXXX.
      </prompt>
    </transfer>
  </form>
</vxml>

Testing this on various cell phones, we found that the ANI of 8009876543 was displayed correctly for the transfer calls. Again, please keep in mind that while you are able to rewrite your ANI, it is still up to the carrier to find, generate, and display the caller ID text on the receiving end.

Regards,
Plum Support