10.1.1. Feature Description 
Up to now the phone number of the caller wasn't shown at the called
party, after remote transfer out of PhoneMail. In case of remote transfer
(CorNet-N) and if COT-Parameter ANDY is set, then the redirectin
number (REDIRECTING_NUM) is exchanged to the called number (CALLED_NUM).
Scenario
PRI Trunks come into System A with ANI from phone company.
Call rings an extension in System A. Phone is ring no answer forwarded
into PhoneMail (Which is in System B). Caller does 0# to transfer out
of PhoneMail and ring another extension in System A. Person Answers phone.
Caller is now connected. The person answering the phone gets the ANI
of the caller.