Method for defeating media-coordinated attacks on emergency call networks, the method comprising: - (S200) receiving, by a first Emergency Services Routing Proxy, ESRP, element, a session initiation request with a session description Protocol, SDP, body wherein the session initiation request deviates from a preconfigured media threshold k from a caller; - (S210) logging, by the first ESRP element, the session initiation request which deviates from a preconfigured media threshold in a set of requests which meet the requirements of step (S200); - (S220) sending, by the first ESRP element, an alert notification to a second ESRP element and/or other ESRP elements which have subscribed using a subscribed/notify mechanism for a potential media-coordinated attack; - (S230) verifying, by the first ESRP element, if there is a transcoding impact in the routing to a first Public Safety Answering Point PSAP, element of the first ESRP element that will handle the call, if no transcoding impact is present the call is transferred to the first PSAP element, otherwise; - (S240) gathering and (S241) analyzing, by the first ESRP element, alert notifications which have been received using the subscribed/notify mechanism for a potential media-coordinated attacks form, the second ESRP element and/or other ESRP elements in the network; - (S250) evaluating, by the first ESRP, the alert notifications from the second ESRP element and/or other ESRP elements to deduce if there is any media-capable PSAP element in any one of the ESRP elements in the network which can handle the call without transcoding, (S251) if yes, the call is routed to a second PSAP element without transcoding, otherwise; - (S290) downgrading, by the first ESRP element, the call to audio only and routing the call to the first PSAP element. - (S200) receiving, by a first Emergency Services Routing Proxy, ESRP, element, a session initiation request with a session description Protocol, SDP, body wherein the session initiation request deviates from a preconfigured media threshold k from a caller; - (S210) logging, by the first ESRP element, the session initiation request which deviates from a preconfigured media threshold in a set of requests which meet the requirements of step (S200); - (S220) sending, by the first ESRP element, an alert notification to a second ESRP element and/or other ESRP elements which have subscribed using a subscribed/notify mechanism for a potential media-coordinated attack; - (S230) verifying, by the first ESRP element, if there is a transcoding impact in the routing to a first Public Safety Answering Point PSAP, element of the first ESRP element that will handle the call, if no transcoding impact is present the call is transferred to the first PSAP element, otherwise; - (S240) gathering and (S241) analyzing, by the first ESRP element, alert notifications which have been received using the subscribed/notify mechanism for a potential media-coordinated attacks form, the second ESRP element and/or other ESRP elements in the network; - (S250) evaluating, by the first ESRP, the alert notifications from the second ESRP element and/or other ESRP elements to deduce if there is any media-capable PSAP element in any one of the ESRP elements in the network which can handle the call without transcoding, (S251) if yes, the call is routed to a second PSAP element without transcoding, otherwise; - (S290) downgrading, by the first ESRP element, the call to audio only and routing the call to the first PSAP element. <EOS>