00 The second dial tone was also removed. Dialling procedures now reflect ETSI and ITU recommendations. Overseas departments and territories The French overseas departments ( or ) have separate country codes from metropolitan France, with Réunion being assigned the code 262 while Guadeloupe, French Guiana and Martinique were assigned the codes 590, 594 and 596 respectively. Until 1996, the use of the international access code 19 and country code was required for calls from metropolitan France. For example, to call Guadeloupe from metropolitan France, a subscriber would dial 19 590 xxx xxx, 590 being the country code. This included the islands of Saint Barthelemy and Saint Martin, which later separated from Guadeloupe to become collectivities, although they still use the same country code. By contrast, calls to metropolitan France from the overseas departments only required the use of the trunk code 16. However, under the new present French numbering plan, direct dialling was introduced for calls between the DOMs (including ) and metropolitan France, requiring only the '0' to be dialed, with the country code being used as a geographical area code. Despite this, the 33 country code was not adopted for calls to the DOMs from the rest of the world, because of technical difficulties with operators in neighbouring countries, for example, calls to Réunion from Mauritius would have to be routed via metropolitan France, adversely affecting voice quality as well as increasing call costs. In 2001, telephone numbers in the DOMs changed to the same ten-digit format as metropolitan France, with new prefixes beginning with the digit '6' being adopted for mobile phone services: Guadeloupe, Saint-Barthélemy and Saint-Martin From France: Fixed phone line: 0 590 xx xx xx Mobile phone line: 0 690 xx xx xx or 0 691 xx xx xx Outside France: Fixed phone line: +590 590 xx xx xx Mobile phone line: +590 690 xx xx xx or +590 691 xx xx xx French Guiana From France: Fixed phone line: 0 594 xx xx xx Mobile phone line: 0 694 xx xx xx Outside France: Fixed phone line: +594 594 xx xx xx Mobile phone line: +594 694 xx xx xx Martinique From France: Fixed phone line: 0 596 xx xx xx Mobile phone line: 0 696 xx xx xx or 0 697 xx xx xx Outside France: Fixed phone line: +596 596 xx xx xx Mobile phone line: +596 696 xx xx xx or