METHOD AND SYSTEM FOR ROUTING CALLS IN INTER-NETWORK INTERFACE FOR TRANSFERRING SPEECH VIA INTERNET PROTOCOL (VOIP) Russian patent published in 2007 - IPC H04L12/66 

FIELD: data transfer systems.

SUBSTANCE: disclosed further are method and system for routing calls in inter-network interface for transferring speech via internet protocol (VoIP), in which on attempt of creation by calling client of VoIP call try station of international information exchange (FXS), inter-network interface VoIP inserts a certain prefix into appropriate port FXS, providing for called inter-network interface the capacity for such identification of calling client on basis of prefix, in case of which port of office of international information exchange (FXO) is assigned in accordance to priority of client.

EFFECT: improved routing of calls in inter-network interface VoIP.

3 cl, 6 dwg