2010/11/20 Olivier <oza_4...@yahoo.fr> > > Depending on what telco Charlie is connected to would change the CallerId > presented to Charlie from being Alice's or Bob's Cid. > > When a call is forwarded, Charlie's telco receives different ANI and CID : > some (seems to) favor ANI and some CID. > > An interesting thing to test is to let Bob issue a simple call to Charlie > using a fake CID such as 0123456789. > Will Charlie's phone display this non-existent number or not ? >
Another trap is recently discovered is : sometimes, the call is presented to Charlie with Alice's name and Bob's number !! I met this one when Charlie is subscribed to an analog line with Caller Name Service enabled. For a reason I don't know, it seems that the numbers choosen to display the name and the number are different (ANI and CID).
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