06507735 is referenced by 32 patents and cites 1 patents.

A mobile switching center receives a call to a wireless telephone unit and determines if the wireless telephone unit is available to receive calls. If the wireless unit is unavailable, the mobile switching center forwards the call to a wireless service node, preferably immediately and without providing any ring back tone to the calling party. The wireless service node prompts the calling party to speak a message for transmission to the wireless telephone unit. The wireless service node converts the message spoken by the calling party from a speech message to a text message and forwards text message to a short message service center for transmission to the wireless unit.

Title
Automated short message attendant
Application Number
9/219696
Publication Number
6507735 (B1)
Application Date
December 23, 1998
Publication Date
January 14, 2003
Inventor
Kevin Swank
Plano
TX, US
Steven F Baker
Alpharetta
GA, US
Agent
Thompson & Knight
US
Agent
H Lisa Calico
US
John D Crane
US
Assignee
Nortel Networks
US
IPC
H04M 11/10
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