PC Card - Sometimes referred to as PCMCIA cards or Data Cards, PC Cards are used to connect a mobile phone to a laptop, enabling the user to expand their communications capabilities while on the move. Once connected, they can send and receive data, e-mail and also browse the Internet.
PCS - Personal Communication Services (PCS 1900 or GSM 1900). The North American GSM service operating on 1900 MHz as opposed to the European standard of 900 MHz. Due to the differing of frequencies, users will often rent a IMS handset to stay connected while roaming to a country which utilizes a differ
PDC - Personal Digital Communications. This is the mobile technology operated in Japan and is not compatible with any other mobile services, including GSM.
Pre-Paid - The term that describes payment in advance for airtime.
Roam / Roaming - The ability to use networks overseas and cross geographical boundaries while using a single number and a single phone.
Satellite Phones - Where GSM is not available, or in areas where coverage may be limited, IMS can provide yo u with a satellite phone which is simple to use and operates on a truly global scale from anywhere to anywhere, phone number, phone book as well as other information related to the subscriber.
VoiceMail - The term used for mobile and cellular voice message services. Calls are diverted to VoiceMail when the user is unavailable or has the phone powered off. The phone alerts you to indicate the receipt of a message.