发明名称 |
MULTI-MEDIA NETWORK SERVICE SYSTEM WITH FREE COMMUNICATION FUNCTION |
摘要 |
The present invention relates to a multimedia network service system including a toll-free call function providing a toll-free call route which can mutually form a toll-free call line between a caller terminal and a receiver terminal when a caller makes a toll-free call even if both the caller terminal and the receiver terminal have no application exclusive for a toll-free call. The system enables a toll-free call to be made even if both the caller terminal and the receiver terminal have no application exclusive for a toll-free call. The system comprises: a caller terminal and a receiver terminal, a multimedia network service server, a call service device, a first call route forming device, and a second call route forming device. |
申请公布号 |
KR20150133621(A) |
申请公布日期 |
2015.11.30 |
申请号 |
KR20140126219 |
申请日期 |
2014.09.22 |
申请人 |
OPENVACS CO., LTD.;JEOUNG, YOUNG MIN |
发明人 |
JEOUNG, YOUNG MIN |
分类号 |
H04W4/16;H04W4/24;H04W40/18;H04W88/18 |
主分类号 |
H04W4/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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