Patent ID: 9332073
Filing Date: 2016-05-03
CPC Classification: H04L

Claim Text:
1. A method for maintaining contact information, comprising: acquiring address book information of a user; acquiring authorization settings of the address book information of the user; saving the address book information of the user and the authorization settings in an address book server, wherein the address book information comprises at least one of: a name, a nickname, a photo, a birthday, an anniversary, a gender, a delivery address, a telephone number, a mail address, a language, an instant messaging and presence protocol (IMPP), a time zone (TZ), and a global positioning of the object (GEO); receiving a subscription request from a subscriber device; establishing, according to confirmation information from a subscribed-for user associated with the subscription request from the subscriber device, a subscription relation list for the subscribed-for user and the subscriber device; and updating, by the address book server, address book information of the subscriber device according to a subscription relation and authorization settings in the subscription relation list when the subscribed-for user modifies the address book information of the subscribed-for user stored in the address book server.