Telecommunications – Radiotelephone system – Auxiliary data signaling
Patent
1995-10-12
1998-09-08
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Auxiliary data signaling
455462, 455455, 455518, 455517, H04Q 720
Patent
active
058060006
ABSTRACT:
A system and method for providing short message service point-to-point extension phone service within a radio telecommunications network. The system includes a gateway mobile switching center (G-MSC), a home location register (HLR), a plurality of mobile switching centers (MSCs), and a plurality of intelligent terminals. The intelligent terminals are assigned to a single common pilot directory number (PDN) in addition to their individual directory numbers. When a call directed to the PDN is received in the G-MSC, the G-MSC sends a routing request message to the HLR. The HLR sends a short message service (SMS) data transmission to each of the plurality of intelligent terminals assigned to the PDN notifying associated mobile subscribers of an incoming extension phone call. Mobile subscribers desiring to accept the call utilize their intelligent terminals to send a responding SMS message back to the HLR. Upon receiving a response accepting the call from one or more of the notified intelligent terminals, the HLR selectively reports the temporary location directory number (TLDN) of one responding intelligent terminal to the G-MSC. The G-MSC then routes the incoming call to the selected responding intelligent terminal.
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Tom Wayne S.
Vo Kim
Bost Dwayne D.
Legree Tracy M.
Smith Steven W.
Telefonaktiebolaget LM Ericsson (publ)
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