Emergency services calls may be alternate-routed in an intelligent network having at least one Service Control Point (SCP) with access to a routing table, a plurality of Service Switching Points (SSP) equipped with point-in-call triggers and one or more emergency services stations (PSAP). The routing table lists a routing number for each of the emergency services stations. The alternate routing involves presetting a point-in-call trigger at a Service Switching Point to operate at a predetermined point in a call for emergency services. During subsequent processing of an emergency services call, the trigger interrupts processing of the call and and prompts transmission to the SCP of a query signalling message requesting routing information. Upon receipt, the SCP accesses the routing table in dependence upon parameters in the query signalling message and obtains a routing number for a selected emergency services operator station, forms a response signalling message including the routing number and returns such response signalling message to the SSP. Upon receipt of the response signalling message, the SSP detects the routing number, and routes the call to the emergency services operator station. There is also provided a method of translating signalling message parameters from a mobile protocol to an intelligent network protocol, and vice versa, to enable emergency services calls from mobile users to be routed to one or more PSAPs in the intelligent network.