1. A method of integrating a narrowband channel and a wideband channel used to communicate between a plurality of client devices and a link infrastructure, said method comprising: maintaining a user account associated with a client device in said link infrastructure; receiving a notification in said link infrastructure from a web server when specific information is updated at said web server, said specific information subscribed by said client device and identified by said notification, wherein said notification comprises a subscriber identifier identifying said user account; extracting a client device identifier from said user account using said subscriber identifier in said notification; and sending a corresponding message including information from said notification, from said link infrastructure to said client device identified by said client device identifier via said narrowband channel; receiving a request from said client device to establish a communication session with a link device in said link infrastructure via said wideband channel; authenticating said client device; forwarding said updated specific information from said link device to said client device via said wideband channel.