Buy an International Roaming SIM Card- These cards are usually (99% of the time anyway) prepaid so you can track your spending. They may also be referred to as Travel SIM cards, global SIM cards and world SIM cards. They work in most countries and save you a fortune- sometimes as much as 90%. The greatest saving is with incoming calls. If you use your home mobile you will pay to receive calls but if you use an International Roaming SIM card you will not incur any incoming costs in many countries. Make sure you get a smartphone with WiFI- Most major metropolitan cities worldwide are littered with free WIFI networks (or at least cafes with cheap WiFI.) Duck into a cafe, put your legs up and make a Skype call from your phone or check your emails. Get the right Apps for your phone- Like I mentioned above, download Skype to your smartphone. If your run a fleet of business phones, get BlackBerry handsets so you can run BBM. your things. The most important thing to prepare is your how to keep in touch. You need to decide on what international cellphone service provider you should use. You can do these by purchasing an international sim card which can save you money tons of money. If you decide to use a telecommunications carries it can cost you around $1,000 or more because carriers charge you from one to five dollar if you use your phones for calls it also charges you when you send and receive text messages.Just buy ahead of your travel date to avoid any troubles along the way. It is advisable to buy a prepaid international sim cards since you don't have to pay monthly bills, remember you only need to use it while you're travelling. It can also provide you with real time information on how many credits you still have left which gives you control on how to spend your allocated budget for the trip. International rates for calls and SMS text messages vary depending on the mobile service provider and country that you are in, but one thing is for sure- it will be a lot cheaper than standard mobile phone rates if you used your home mobile phone when you are travelling.An international SIM card is a must have for everyone who frequently makes trips out of his home country. It is a cost saving way to stay in touch with the people and stay updated. Keeping up with the latest no longer has to mean putting a hole in your pocket. For more information about international calls while abroad check out this excellent International Sim Cards website which is full of great resources, reviews and articles on using your phone while abroad.