This included everything from telephones, telephone exchange switches, and transmission equipment. Cordless bluetooth headsets are available and often used with mobile telephones. The phone surveys only reach households with landline telephones. They marvel at devices such as clocks, telephones and computers. Handsets and often headsets for use with telephones commonly use a 4P4C connector. Some digital cordless telephones operate in this band too. Avaya provided the data network equipment, including switches, routers, security, telephones and contact-center systems. Paging and mobile (cellular) telephones were adopted early and freely. Television, telephones and calendars were banned. The city lacked paved streets, electric lights, telephones, and a reliable fire alarm system. The recording engineers used microphones of the type used in contemporary telephones. The dialling code for fixed-line telephones in Reading is 0118. The Ericsson company also established a factory for telephones and switchboards in Budapest in 1911. MTNL provides fixed line telephones and WLL services. Fiction anticipated the development of real world mobile telephones.