发明名称 Obviating mobile airtime minutes for business telephone calls
摘要 Systems and methods are described that provide a phantom mobile telephone number that is assigned by the mobile telephone service provider, for business customers and/or customers subscribing to the service. Upon receipt of the phantom mobile telephone number at the mobile service provider's internal call routing system, the call is associated with a preexisting landline number assigned to a business. The mobile telephone call is forwarded to the preexisting landline telephone number and is not charged airtime minutes.
申请公布号 US8611855(B2) 申请公布日期 2013.12.17
申请号 US201213681510 申请日期 2012.11.20
申请人 AT&T INTELLECTUAL PROPERTY I, L.P. 发明人 COOK JASON
分类号 H04M11/00 主分类号 H04M11/00
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