CALL ROUTING METHOD AT VOIP USING VOICE QUALITY ESTIMATE VALUE

摘要

PURPOSE: A call routing method at a VoIP(Voice over Internet Protocol) using a voice quality estimate value is provided to offer optimum voice quality by flexibly coping with organically changing network environment. CONSTITUTION: When a call connection request signal is received(S110), a gateway routing table is searched(S112) to determine whether there is a matched access code(S114). If there is a matched access code, it is searched whether there is a gateway group table of the corresponding access code(S118). If there is a gateway group table, MOS(Mean Option Score) values of the gateways of the gateway group table are compared(S120). A gateway having an optimum MOS value is selected(S122), and then, call is routed to the selected gateway(S124).