A spin-off from Indonesia: Travel Survival Kit--in which it will still be included--Java offers in-depth information on this popular Indonesian island. Coverage of both the tourist spots and unusual, out-of-the-way destinations is provided, plus details on culture, traditional music, national parks and reserves, and more. Language glossary. of color photos. 59 maps.It is cheaper to ring on weekends and public holidays, when a 25% discount applies, or on weekdays from 9 pm to 6 am for Asia and Oceania, ... Codes for countries with multiple phone companies are listed in Indonesian phone books. ... If your phone company offers international roaming for Indonesia, you can use your handphone (as it is called in Indonesia) and home SIM card in Indonesia. Mobile calls are cheap in Indonesia, but check the roaming rates charged by your company.