Inter-island travel is generally via ferry or 45-seat propeller planes. The islands of Brava and Santo Antão, however, are only accessible by boat. Not all flights between islands are direct, even if originally scheduled as such, and airline services may be delayed, re-routed , or cancelled due topoor visibility from dust or rain and related safety concerns. During peak travel seasons (summer and winter holidays), air travelers arriving from abroad into Praia and other major airports for connecting flights to other islands may experience luggage delays at their final destination because of the limited carrying capacity of aircraft. Prudence dictates having a change of clothing and all vital materials (including medications) in your carry-on luggage to tide you over for the first 24-48 hours in country. There is regular daily inter-island ferry service between Santo Antão and São Vicente. Ferry services are also available between Santiago, Brava, and Fogo but do not operate daily and the service schedules frequently change. Those planning to travel by ferry should plan well in advance and confirm a couple of days before departure that the ferry service is still operating. Regardless of whether your inter-island travel is by air or sea, be aware that poor weather and sea conditions often cause last-minute delays or cancellations.
CV Telecom is currently the largest provider for fixed-line voice, data service, and Internet service (dial-up, ISDN, and ADSL). T Mais, a competitor, also provides internet and fixed line services. Mobile phone service is on the GSM standard and is available from both CV Telecom and T Mais. Only major cities and towns have Internet cafes, and international telecommunications services in Cabo Verde are dependent on transatlantic fiber-optic cables. Visitors who need reliable communication to other countries may want to consider carrying satellite-based voice and/or data equipment.
The international country code for Cabo Verde is 238. Fixed and mobile line numbers all have seven digits. Land lines all begin with the number “2,” and mobile numbers, which all began with the number “9” until the end of 2009, may now begin with either “5” or “9.” Telephone connections are good, but calls made to numbers outside the archipelago are very expensive.