Auxillary communication service routing
First Claim
1. In a cellular radio network including a first exchange connected to a calling subscriber, a second exchange connected to a called subscriber and a third exchange connected to said first exchange through a public switched telephone network and to an auxiliary communications services mailbox for said called subscriber, a method for routing a call from said calling subscriber to said auxiliary communications services mailbox of said called subscriber comprising the steps of:
- receiving said call at said first exchange;
routing said call to said second exchange;
directing said call to said called subscriber;
detecting at said second exchange that said call cannot be completed to said called subscriber;
sending from said second exchange to said first exchange a request to transfer said call;
sending to said third exchange via said cellular radio network in response to said request to transfer a request for an auxiliary communications services number recognizable by said public switched telephone network;
sending an auxiliary communications services number from said third exchange to said first exchange; and
routing said call from said first exchange to the auxiliary communications services mailbox of the called subscriber connected to said third exchange via said public switched telephone network.
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Accused Products
Abstract
A system and method for routing a call through the PSTN to an auxiliary communications services mailbox, such as voice mail, of a mobile subscriber. The call is received in the nearest exchange and routed to the exchange where the mobile subscriber is located. If the mobile subscriber, for example, does not answer, a voice mail number is used to route the call to the exchange where the voice mailbox is located.
102 Citations
30 Claims
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1. In a cellular radio network including a first exchange connected to a calling subscriber, a second exchange connected to a called subscriber and a third exchange connected to said first exchange through a public switched telephone network and to an auxiliary communications services mailbox for said called subscriber, a method for routing a call from said calling subscriber to said auxiliary communications services mailbox of said called subscriber comprising the steps of:
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receiving said call at said first exchange; routing said call to said second exchange; directing said call to said called subscriber; detecting at said second exchange that said call cannot be completed to said called subscriber; sending from said second exchange to said first exchange a request to transfer said call; sending to said third exchange via said cellular radio network in response to said request to transfer a request for an auxiliary communications services number recognizable by said public switched telephone network; sending an auxiliary communications services number from said third exchange to said first exchange; and routing said call from said first exchange to the auxiliary communications services mailbox of the called subscriber connected to said third exchange via said public switched telephone network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In a cellular radio network including a first exchange connected to a calling subscriber, a second exchange connected to a called subscriber and a third exchange connected to said first exchange through a public switched telephone network and to an auxiliary communications services mailbox for said called subscriber, a system for routing a call from said calling subscriber to said auxiliary communications services mailbox of said called subscriber comprising:
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means for receiving said call at said first exchange; means for routing said call to said second exchange; means for directing said call to said called subscriber; means for detecting at said second exchange that said call cannot be completed to said called subscriber; means for sending from said second exchange to said first exchange a request to transfer said call; means for sending to said third exchange via said cellular radio network in response to said request to transfer a request for an auxiliary communications services number recognized by said public switched telephone network; means for sending an auxiliary communications services number from said third exchange to said first exchange; and means for routing said call from said first exchange to the auxiliary communications mailbox of the called subscriber connected to said third exchange via said public switched telephone network. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for routing an incoming call intended for a mobile subscriber to an auxiliary communications services equipment in a cellular radio network comprising the steps of:
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connecting said auxiliary communications services equipment to a selected exchange in said cellular radio network; routing said incoming call to the nearest exchange in said cellular radio network; locating the exchange currently serving said mobile subscriber; routing the call from said nearest exchange to said serving exchange; directing the call from said serving exchange to said mobile subscriber; detecting that said incoming call cannot be completed to said mobile subscriber; requesting a transfer of said incoming call from said serving exchange; determining whether said mobile subscriber has auxiliary communications services; requesting an auxiliary communications services number from said selected exchange; routing said incoming call from said nearest exchange to said selected exchange using said auxiliary communications services number; and routing said incoming call from said selected exchange to said auxiliary communications services equipment. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A system for routing an incoming call intended for a mobile subscriber to an auxiliary communications services equipment in a cellular radio network comprising:
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means for connecting voice mail equipment to a selected exchange in said cellular radio network; means for routing said incoming call to the nearest exchange in said cellular radio network; means for locating the exchange currently serving said mobile subscriber; means for routing the call from said nearest exchange to said serving exchange; means for directing the call from said serving exchange to said mobile subscriber; means for detecting that said incoming call cannot be completed to said mobile subscriber; means for requesting a transfer of said incoming call from said serving exchange; means for determining whether said mobile subscriber has voice mail service; means for requesting an auxiliary communications services number from said selected exchange; means for routing said incoming call from said nearest exchange to said selected exchange using said auxiliary communications services number; and means for routing said incoming call from said selected exchange to said auxiliary communications services equipment. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification