The invention provides a system that includes a method and apparatus for automatically barging-in on telephone calls. When a first party is talking to a second party, a third party may be automatically connected to the first party and the second party given an option to hold or leave a voice mail message....http://www.google.fr/patents/US6563915?utm_source=gb-gplus-shareBrevet US6563915 - Method and apparatus for an automatic barge-in system
Method and apparatus for an automatic barge-in system
