What materials a used to make a cellphone tower?

How do you keep the screen from rotating when you turn an iPhone? What is the area code for alemania? Mobile phones should be allowed at school? Where is telephone country code 0935? What is an appropriate educational gift for an 18 month old girl? When was Quora founded? What is XD in text talk? What do you call the person who finds dinosaurs? Why do they say on the Internet and not in the Internet? What do you do if you get burnt by hot water? What companies offer intercom and walkie talkies? What phone network is the fastest? How does a Avaya phone work? How do you play monster hunter online? When you dial a phone number silent? Can you decipher this message I004I80? In which country do BT Albacom operate? How can you trace a private number from your mobile phone without paying fees? Can Motorola ex115 be connected to net through PC? What are the negative impacts of religion in the society and explain?