STD Ki Full Form Kya Hai STD Ka Matlab Kya Hota Hai STD Full Form In Hindi
STD Full Form Ki Jankari In Hindi/Urdu STD Ki Full Form Kya Hai STD ISD PCO Ka Full Form STD ki full form Subscriber Trunk Dialing ya phir Subscriber Toll Dialing hai. ISD ki full form International Subscriber Dialing hai. PCO ki full form Public Call Office hai. STD telephonic system ki aik type hai jo users ko independently kisi operator ki madad ke baghair trunk calls karne ki ijazat deti hai. Ye term is technology aur mobile usage ke daur mein taqreeban khatam ho chuki hai iske bawajood STD door ke faslay par directly call karne ke liye use hota tha. STD term aam taur par Ireland, United Kingdom, Australia, India, South East Asia mein istemal hoti hai. USA jesi countries mein STD term ko Direct Distance Dialing kaha jata hai. STD aane ke baad individual STD code jo kay har city k liye mukhtalif hota hai aur city name ke sath represent karta hai. Mobile Phones ke introduction ke baad log country ki mukhtalif states mein baghair kisi STD code ya prefix k call kar sakte ...