A method and system that provides for efficient re-synchronization of a PPP link on a Um interface is provided. When the PPP link is connected, if an indication that the communications of the mobile station is associated with a new network server is detected, only the Um interface will undergo PPP configuration...http://www.google.com.au/patents/US8098617?utm_source=gb-gplus-sharePatent US8098617 - Method and apparatus for selective examination of PPP packets for renegotiation of a PPP link on a Um interface
