Subscription method and device

Y Shi - US Patent 7,948,955, 2011 - Google Patents
(57) ABSTRACT A Subscription method and device based upon the session initiation
protocol are disclosed. Such that a function of per manent Subscription and temporary …

Subscription method and device

Y Shi - US Patent 7,948,955, 2011 - freepatentsonline.com
A subscription method and device based upon the session initiation protocol are disclosed,
such that a function of permanent subscription and temporary subscription is achieved, and …

Subscription method and device

Y Shi - US Patent App. 12/017,423, 2008 - Google Patents
A subscription method and device based upon the session initiation protocol are disclosed,
such that a function of permanent subscription and temporary subscription is achieved, and …

SUBSCRIPTION METHOD AND DEVICE

Y Shi - US Patent App. 12/017,423, 2008 - freepatentsonline.com
A subscription method and device based upon the session initiation protocol are disclosed,
such that a function of permanent subscription and temporary subscription is achieved, and …