Smart Dialer with record call voice and status

we need one app where my staff can call and update about that call and other stuff we already developed this app, but now we want some changes and some extra futures we have source code of that data if u can use that app code ok or using that css & methods u can develop new app, witch is best u can choose but witch is lower cost i will choose that. STEPS 1. LOGIN PAGE (MOBILE NO & PASS) 2. DASHBOARD (SHOW STATICS TABLE COUNT FOR CALLS,PICKUPS & LEADS) 3. DIALER A) SHOW MOBILE NUMBERS WITCH WAS ASSIGNED TO THAT USER B) AFTER LOGIN USER CLICK ON OPTION THEN START AUTO CALLING THOSE NUMBERS C) AFTER CALL CLOSE OPEN FEEDBACK POPUP OR PAGE D) USER CHOOSE FEEDBACK AND ENTER REMARKS AND CLICK SUBMIT AFTER 5 SEC RE AUTO CALL NEXT NUMBER 4. CALL HISTORY (SHOW ALL CALLS WITH FILTER OPTION AS DATE & STATUS & IF USER NEED TO CALL FROM HISTORY MENU THEY CAN CALL AND UPDATE NEW STATUS AFTER UPDATE NEW STATUS SAME PAGE NEED TO REDIRECT ) 5. PICK UP TABLE & PICKUP FORM (SAME AS WEBSITE) 6. LEADS TABLE & DETAILS STATUS PAGE OF EACH LEAD we help on sharing web url so only api & other stuff u need to do, and u need to host in playstore i have account in playstore Note: after auto call & feedback demo then only i will award & create milestone, mile stone on 3 parts after demo after pickup after leads release milestone after finish all works. ur responsible for bugs & if there is future work we pay extra project need to finish 7 to 10 days