The research scope of this thesis is the analysis of the international emergency preference scheme and requirements on call control protocols in multiservice network with emphasis on signalling procedures and interfaces among network elements involved in international preference call. Main research task is the analysis of multiservice network based on BICC protocol and adaptation of the protocol according to requirements from international preference call. This thesis addresses international emergency preference scheme with the whole set of requirements that need to be met. Further it describes functions of international emergence preference scheme and lists requirements on call control protocols. Study includes description of multi service network which is the domain of this service with particular accent on call control protocols and interfaces. Based on the results of analysis of existing call control protocols, BICC protocol is defined for realization of international emergency preference scheme. Detail analysis of BICC protocol shows its shortcomings in realization of international emergency preference scheme in the multi service network. In particular, the thesis is focused on necesary adaptation of BICC protocol required to achieve this service, followed by the detail signalling sequence of the call in the multi service network based on BICC protocol with international emergency preference scheme implemented.