Method for improved handling of IP multimedia subsystem emergency calls and configuration of a user equipment being attached to a visited mobile communication network via a radio access network of or associated with the visited mobile communication network, wherein the method comprises - in dependency of an unregistered emergency call support indication related to the visited mobile communication network and to IP multimedia subsystem emergency calls - either a first and a second step, or the first and a third step: -- in the first step, the user equipment - while attaching to the visited mobile communication network - receives, from the visited mobile communication network the unregistered emergency call support indication regarding the visited mobile communication network, the unregistered emergency call support indication being indicative of the visited mobile communication network either providing or not providing the possibility of an unregistered IP multimedia subsystem emergency call for the user equipment in case it is attached to the visited mobile communication network, wherein the unregistered emergency call support indication is transmitted to the user equipment during performing an attach procedure in order to be attached to the visited mobile communication network, wherein the unregistered emergency call support indication indicates whether or not unregistered emergency calls are allowed within the visited mobile communication network, wherein the unregistered emergency call support indication is transmitted together with local emergency numbers to be used for placing an IP multimedia subsystem emergency call, -- in the second step subsequent to the first step, and in case that an IP multimedia subsystem emergency call needs to be initiated by the user equipment while the user equipment is attached to the visited mobile communication network, the user equipment initiates the IP multimedia subsystem emergency call to the visited mobile communication network as an unregistered emergency call in case that the unregistered emergency call support indication indicates that the visited mobile communication network does provide the possibility of an unregistered emergency call, and -- in the third step subsequent to the first step, and in case that an IP multimedia subsystem emergency call needs to be initiated by the user equipment while the user equipment is attached to the visited mobile communication network, the user equipment attempts to initiate an emergency registration with the visited mobile communication network in case that the unregistered emergency call support indication indicates that the visited mobile communication network does not provide the possibility of an unregistered emergency call, wherein in case of the emergency registration failing, the user equipment attempts to connect to a further visited mobile communication network in order to initiate an emergency call. -- in the first step, the user equipment - while attaching to the visited mobile communication network - receives, from the visited mobile communication network the unregistered emergency call support indication regarding the visited mobile communication network, the unregistered emergency call support indication being indicative of the visited mobile communication network either providing or not providing the possibility of an unregistered IP multimedia subsystem emergency call for the user equipment in case it is attached to the visited mobile communication network, wherein the unregistered emergency call support indication is transmitted to the user equipment during performing an attach procedure in order to be attached to the visited mobile communication network, wherein the unregistered emergency call support indication indicates whether or not unregistered emergency calls are allowed within the visited mobile communication network, wherein the unregistered emergency call support indication is transmitted together with local emergency numbers to be used for placing an IP multimedia subsystem emergency call, -- in the second step subsequent to the first step, and in case that an IP multimedia subsystem emergency call needs to be initiated by the user equipment while the user equipment is attached to the visited mobile communication network, the user equipment initiates the IP multimedia subsystem emergency call to the visited mobile communication network as an unregistered emergency call in case that the unregistered emergency call support indication indicates that the visited mobile communication network does provide the possibility of an unregistered emergency call, and -- in the third step subsequent to the first step, and in case that an IP multimedia subsystem emergency call needs to be initiated by the user equipment while the user equipment is attached to the visited mobile communication network, the user equipment attempts to initiate an emergency registration with the visited mobile communication network in case that the unregistered emergency call support indication indicates that the visited mobile communication network does not provide the possibility of an unregistered emergency call, wherein in case of the emergency registration failing, the user equipment attempts to connect to a further visited mobile communication network in order to initiate an emergency call.