Method of providing a unique call back number for wireless 9-1-1 calls

A method of communication to at least one wireless unit originating an emergency call. The method includes the step of receiving one or more routing tags associated with a wireless unit originating a "9-1-1" call. A routing tag may comprise, for example, a string of numbers corresponding with Emergency Service Routing Digits ("ESRD") and/or an Emergency Service Routing Key ("ESRK"). In addition to the routing tag, a mobile equipment identification number ("MEIN") and/or a paging identity ("PGID") may also be received by a database accessible by wireless network infrastructure elements, such as a mobile switching center ("MSC"), as well as the emergency call center, including the local public service answering point, for example. In response to this receiving step, at least one unique identifier (e.g., unique call back number) may be generated. This unique identifier may be a dialable number to enable the emergency call center to call back the wireless unit originating the "9-1-1" call. Thereafter, the unique identifier may be transmitted back to the MSC, along with the emergency call center, for example. Consequently, an emergency call back may be launched by the emergency call center using the unique identifier to reach the MSC generally, and more particularly, the wireless unit originating the "9-1-1" call.