Calls to landlines and other mobiles require the area code on a mobile phone. This number is free to call from mobiles and landlines. Some PC-to-telephone services, such as SkypeOut offer flat rates for national calls to landlines. The survey is conducted with respondents contacted on landlines and cellphones, and includes Spanish-language interviewing. It is home to most of the province's landlines and cell phones. Additionally, calls are accepted from the other emergency services by dedicated landlines. Verizon terminated the ability to receive collect calls on its landlines in 2016. The KNIL units were not equipped with radios and relied on landlines and written communications. Companies operating submarine cables with no landlines were excluded from nationalisation. Landlines and submarine cables connected the Orme to Liverpool and Holyhead. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines. Additionally, there are 5.745 million active landlines in the country. Telmex was listed with a market share of 95% share of landlines. Between 1998 and 2008, Africa added only 2.4 million landlines. A number of physical products have been developed for use with landlines.