There is some cellular coverage in Madagascar. Turn on international roaming if you want to be reached whenever you are in Madagascar’s big cities. The alternative is to purchase a local SIM card and an inexpensive phone at a shop, supermarket or airport. Expect to pay about EUR 5 for a SIM card but it usually includes only a small amount of credit. Communication by phone in Madagascar is expensive and the clarity of the telephone lines is worse than in other countries.
It is possible to call abroad from any public phone using a phone card from a Telma office (Telecom Malagasy). Some cities, small towns like Moramanga, and even small islands like Tsarabanjina, are covered by the local mobile phone network. There are two mobile phone operators in Madagascar: Orange (dial 032) and Celtel (dial 033).