In one embodiment, a method for paging from a pagor to a pager is disclosed. In one step, a page is sent wirelessly to the pager and received from the pagor. After determining that the pagee has not responded to the page for a predetermined time period, the page is converted to a message and a message-waiting...http://www.google.de/patents/US6987443?utm_source=gb-gplus-sharePatent US6987443 - Unified paging
