专利内容由知识产权出版社提供
专利名称：Call charging notification发明人：Alan Bernard Johnston申请号：US10016111申请日：20011217公开号：US06928150B2公开日：20050809
专利附图：
摘要：An approach for providing charging information of a call established over a datanetwork is disclosed. A communications system includes a user agent that initiates a callto another user agent according to an application layer protocol. The system alsoincludes a network element that assists in establishing the call and forwards information
indicating that the call is chargeable to the user agent. The present invention hasparticular applicability to SIP (Session Initiation Protocol) IP (Internet Protocol)telephony services.
申请人：Alan Bernard Johnston
地址：St. Louis MO US
国籍：US
更多信息请下载全文后查看
