AirGorilla's Global Cell Phones and Providers

Wouldn't it be nice to keep in touch with family and business contacts while you are overseas? AirGorilla has put together a team of high-quality global cell rental providers:

(1) Cellular Abroad - Local rates (no roaming); Free incoming calls,
            $10 off with promo code GORILLA

(2) Mobal - Buy a world cell for just $49, then only pay air time, no rental rates.

(3) World Cell - Special offer for AirGorilla customers: First week of rental will be free !

Choosing a Provider: Which world cell phone service provider is best for you likely will depend upon each provider's cellphone rates to places you visit and how often you travel internationally. The providers allow you to book world cellular online and review rates and policies for nations you will be visiting. Depending on (1) how long you will visit overseas, (2) how frequently you travel, and (3) how many calls you expect, these factors will determine which provider of global cell phones and which plan (such as rent or buy) makes the most sense for you. If you are new, the third world cell phones provider has a lot of useful "How-to" explanations.

World Cell Phones WIKI Definitions

A mobile or cellular phone is a long-range, portable electronic device for personal telecommunications over long distances. Most current mobile phones connect to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception are satellite phones). Cellular networks were first introduced in the early to mid 1980s (the 1G generation). Prior mobile phones operating without a cellular network (the so-called 0G generation), such as Mobile Telephone Service, date back to 1945. Global cell phones.

Until the mid to late 1980s, most mobile phones were sufficiently large that they were permanently installed in vehicles as car phones. With the advance of miniaturization, currently the vast majority of mobile phones are handheld. In addition to the standard voice function of a telephone, a mobile phone can support many additional services such as SMS for text messaging, email, packet switching for access to the Internet, and MMS for sending and receiving photos and video.
  The Global System for Mobile Communications(GSM) is the most popular standard for mobile phones in the world. GSM service is used by over 2 billion people across more than 212 countries and territories. The ubiquity of the GSM standard makes international roaming very common between mobile phone operators, enabling subscribers to use their phones in many parts of the world. GSM differs significantly from its predecessors in that both signaling and speech channels are Digital call quality. Data communication was built into the system from very early on. World cell phones.

From the point of view of the consumer, the key advantage of GSM systems has been higher digital voice quality and low cost alternatives to making calls such as text messaging. The advantage for network operators has been the ability to deploy equipment from different vendors because the open standard allows easy inter-operability. Like other cellular standards GSM allows network operators to offer roaming services which mean subscribers can use their phones all over the world.
  SIM Card - A Subscriber Identity Module is a smart card roughly the size of a postage stamp that securely stores the key identifying a mobile phone service subscriber, as well as subscription information, saved telephone numbers, preferences, text messages and other information. The equivalent of a SIM in UMTS is a Universal Subscriber Identity Module (USIM).

The SIM stores network state information such as its current location area identity (LAI). If the handset is turned off and back on again it will take data off the SIM and search for the LAI it was in. This saves time by avoiding having to search the whole list of frequencies that the telephone normally would. Each SIM is uniquely identified by its ICCID (International Circuit Card ID). World cell phones and international global cell phones.