1. A computer system comprising: one or more computer processors; and one or more non-transitory tangible storage mediums storing a set of instructions that when executed by the one or more computer processors cause the computer system to function as a Public Safety Answering Point (PSAP) by: receiving an emergency service request from an endpoint device; receiving physical location information of the endpoint device; receiving access node data that identifies an access node used by the endpoint device to send the emergency service request; generating, in response to the emergency service request, a broadcast request that includes emergency instructions; displaying for view by a user and in response to receiving the emergency service request, a list of access nodes near a location indicated by the received physical location information; and transmitting the broadcast request to the identified access node, the broadcast request being different than the emergency service request, the transmission of the broadcast request implemented using a protocol that notifies the identified access node that endpoint devices serviced by the identified access node should be notified of emergency conditions.