Patent ID: 8300580
Filing Date: 2012-10-30
Classification: H04L,H04W

Abstract:
1. A call setup method, adaptable to a mobile virtual private network (MVPN), wherein the MVPN comprises a plurality of access point apparatuses, at least one database, and a plurality of users, the database records a private extension number, a user phone number, and a user identity module of each of the users and a link address of the corresponding access point apparatus, and the users comprise a mobile origination (MO) user and a mobile termination (MT) user, the call setup method comprising: receiving a call setup request message for setting up a call with the MT user from the MO user by using the access point apparatus corresponding to the MO user; determining whether the link address of the access point apparatus corresponding to the MT user is valid according to the database by using the access point apparatus corresponding to the MO user; and if the link address of the access point apparatus corresponding to the MT user is valid, setting up the call through the access point apparatus corresponding to the MO user and the access point apparatus corresponding to the MT user by using the MO user and the MT user.