Patent 8369488 was granted and assigned to AT&T Mobility on February, 2013 by the United States Patent and Trademark Office.
A voice based emergency call, such as a call to 911, is provided to a public safety answering point (PSAP) triggered from a non-voice based emergency call. When a non-voice based call is sent to a PSAP that does not accept non-voice based calls, upon determining that the PSAP can not handle non-voice based calls, the communication network is utilized to establish a voice based call with the PSAP.