Write an iPhone app using jabber sdk

Our application mainly uses a set of web pages and an sdk integration for JabberGuest. we need the IOS webView to display the html pages and we need a javascript callback interface to invoke various actions from HTML page, actions such as using dialer to call the number defined in html pages(eg:- tel:9200000) , open mail client with provide to Address (mailto:aaa @[login to view URL]), open the url in the browser when clicking on external links, action to open the call window from the SDK (for two channels) and finally open a web url within the app with back navigation ( this url is currently not provided , will be provided later, this is url for video streaming)