Individuals who have purchased US sim phone cards from HolidayPhone and want to make sure that they have reserve calling capacity after they land in the United States of America can buy a thirty day USA top up voucher. This voucher can be used when people run out of time when making calls in the United States. The voucher will then top up the owner's prepaid USA sim card with an additional thirty days worth of free calls. These free calls can only be made within the United States and calls cannot be made via this voucher on the prepaid US sim card anywhere outside the USA. However, people who add this voucher onto their US prepaid sim cards in their mobile phones can make free text messages to anybody worldwide, including the United States.

Other prepaid sim card aspects that are also included in the thirty day USA top up voucher are new call minutes to the United Kingdom, which are made up of a total of twenty hours to fixed landlines or two hours to mobile phones. An additional one hundred megabytes of 3G data traffic is also included in the top up voucher. Obviously this thirty day top up voucher will only need to be purchased by people who plan to stay in the United States of America for longer than twenty five days. Twenty five days is the maximum amount of time that is programmed into US sim phone cards as part of any standard prepaid USA sim card starter package bought from HolidayPhone. This adds up to a total of fifty five days of use from a prepaid USA sim card while staying in the USA.

There are certain aspects of mobile phone call usage that a top up voucher will not provide when people purchase their US prepaid sim cards from HolidayPhone. Incoming call forwarding from the United Kingdom will not be topped up on any type of prepaid USA sim card standard package provided by HolidayPhone. Individuals who would like to have the facility of extra call forwarding from the United Kingdom must inform HolidayPhone of this fact upon which the extra call forwarding time will be added, at a price, to the standard prepaid sim card package that the person has chosen to purchase. This is an important fact to remember as this additional call forwarding time cannot be purchase when in the United States.

Visit Prepaid USA Phone Cards US Sim Card to purchase your sim card.

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