4 ms·
When a phone call is made, there are (at least) two parties responsible for what gets displayed on the callee's phone: a) CallerID: This is the numeric part of
by phjesusthatguy3 8y ago
When a phone call is made, there are (at least) two parties responsible for what gets displayed on the callee's phone:
a) CallerID: This is the numeric part of the info displayed on the callee's phone. Is provided by the calling party, DOES NOT have anything to do with the second part. IS NOT RESPONSIBLE FOR THE NAME THAT SHOWS ON THE CALL
b) CNAM: This is the Name part that gets delivered to the callee's phone. This is essentially a reverse lookup on the CallerID part of the call IN THE CALLEE'S PROVIDER'S DATABASE
Back when (today's) AT&T ran the whole phone system, those two databases were essentially the same. Now that they aren't, hilarity ensues.