A communication network for emergency service call handling, the communication network comprising a mobile switching center (MSC) configured to receive an emergency call from a wireless end device and transmit first call signaling indicating a call key for the emergency call and a public safety answering point (PSAP) for the call, and a gateway system configured to receive the first call signaling, process the first call signaling to generate second call signaling indicating the call key and the PSAP, transmit the second call signaling to a routing system, and connect the emergency call from the MSC to the routing system.