Being the 1st signal which requires the root deciding command for upper

摘要

(57) address is assigned to the service area of ​​a particular route decide which represents the [summary] alternative terminal. Service area such, including the cell area local access transport area (LATA), mobile switching center (MSC) area, location and area. Incoming call directed to the mobile station is currently located within the service area when a particular receive, without sending an address determined route representing the mobile station, an alternate terminal serving mobile switching center (MSC) It sends a signal that contains the address decided to root represents. And without decided route the call to the mobile station that was intended, using the address decided incoming routes, the gateway mobile switching center (GMSC) decided to re-route to an alternate terminal incoming calls. By the decided re-route toward the alternate terminal the incoming calls of all in case of emergency, available access all channels for performing the outgoing call by the mobile subscriber located in the emergency service area is reserved.