Linphone customize SIP Client Andriod

Hi I want to modify Linphone into Tablet 7" Andriod 5.1 use for Free SIP to PSTN Kiosk [login to view URL] - Auto open app in fullscreen mode (portrait) without close button or switch to other app after device power on - Full screen vdo/jpeg/gif file from URL List - after any touch from above will show mainpage : Separated square layout and pull content from Specific URL (Video, weather, Jpeg, GIF, Google map) and drill down to subpage - Google Maps will use GPS start location in setting page and searchable destination - NOT ACCEPT Incoming call - NO Contact list address book - Dial Page Separate screen as block layout to show (Video, Jpeg, GIF) - Can sent DTMF tone while on call (e.g. press for extension number) - History will sent as txt files to SQL database on Internet (date/time/serial no/destination phone number/duration) - Outgoing call to SIP provider (IP,username,password adjustable in setting page) - Volume adjustable UI button - switchable between speaker or earphone - remote configuration available (setting page & remote configuration page may different design or not are ok, just same parameter) - setting page with keyboard will appear after press *999*123456789*+Call button please reply Thank you. PS I may hire or buy immediately If you already have similar this project.