So you do quite a lot of international traveling and want your clients to be able to reach you from wherever in the world you may be
. The first thing you have to do is to determine the options that are available to you and find out what the charges will be if you'll need to have a new cell phone service plan.
The country where you live is very important as far as international cell phone services plans go. Most of the countries have one standard in cellular communications system that is known as the Global System for Mobile Communications (GSM). But, the US didn't allow the GSM standard and permitted competing wireless service providers to develop their own standards. Therefore, if you are live in the US and want to get cell phone coverage in another part of the world with your current cell phone, you probably won't be able to.
You need to know that the primary issues with having effective international cell phone service is that you must have a compatible service within the country that you are trying to communicate from and a cell phone that will handle the frequencies of that country. If you own a cell phone that uses GSM service, your cell phone will be usable in a minimum of 212 countries around the world. The only other thing that you will need to be concerned with is the service plan. There are more tri band cell phones being sold that are compatible with both the North American and the international GSM frequencies.
If you buy a tri band cell phone you can get a SIM card that can be used in numerous countries. The SIM cards work much the same as a pre paid cell phone service. All you have to do is put the SIM card into the GSM capable cell phone and you will have roaming coverage internationally from wherever the SIM card is valid.
When you select an international cell phone SIM card for your GSM phone, there are some that you need to consider when purchasing a SIM card. In the first place, you have to determine how long prior to you having to recharge. Obviously you will know the rate structure of both the outgoing and incoming calls. Then, you need to ensure that your cell phone and the SIM card that you are buying are valid in the countries where you intend to travel.