Method for the realization of mobility by using WLAN Voice terminal at the ISDN switching system

摘要

PURPOSE: A method for supplying portability on a WLAN(Wireless LAN) terminal is provided to perform an access signaling process between a WLAN terminal and the second AP(Access Point) when a handover process is completed, thereby securing portability in case the WLAN terminal moves to other AP from one AP. CONSTITUTION: While performing an access signaling process between a WLAN terminal and the first AP, the WLAN terminal moves to the second AP and carries out a probe process. The WLAN terminal and the second AP execute an MAC address authentication process. By responding to a re-access request of the WLAN terminal that passes through the second AP, a line interface performs a handover process by using MAC address information of the first AP and terminal information of the WLAN terminal. When the handover process is completed, the access signaling process is carried out between the WLAN terminal and the second AP.