Assalam-o-Alaikum

Mere Paas PTCL k dsl conection hai but as a backup main Cyber k DSL lena chah rha hoon, main yeh chah rha hoon k PTCL jaise hi disable hoo jai ya browsing ruk jai to Cybver Automatic on hoo jai mean k user ko koi problem na hooo...kia aisa possible hai......agar hai to plz batain......ya possible nahi automatic to manually kaise kar saktay hain yeh bata dain.......