| General Mobile Phone Terms |
| GSM |
Global System for Mobile communication—the most widely used, digital network technology |
| CDMA |
Code Division Multiple Access—a competitor of GSM, CDMA delivers higher-capacity by using spread-spectrum. The foundation of 3G. |
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| SIM |
Subscriber Identification Module-the small chip used by GSM phones to store your phone number, account balance, and other data. |
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| Charge Card |
Single-use "top up" cards used to add money to pre-paid accounts |
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| SMS |
Short Message Service-a text message |
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| MMS |
Multimedia Message Service |
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| Mobile Internet Terms |
| GPRS |
General Packet Radio Service - This is the technology that allows your phone to transfer data, say for email and web browsing, over mobile phone networks without interrupting voice communication. Transfer rates range from 9.6kbps to 115kbps |
| WAP |
Wireless Application Protocol - a specification for access to the internet on mobile devices. WAP is limited access to the internet through a carrier's gateway. |
| CMWAP |
China Mobile's WAP network, also known as Monternet |
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| CMNET |
China Mobile's direct internet network. Full internet access including laptop connection is available |
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| APN |
Access Point Name - used with GPRS. China Mobile's two different APNs are CMNET and CMWAP. CMNET is not available for ShenZhouXing Users |
| Gateway IP |
Gateway Internet Protocol - the address of the service provider's GPRS gateway. Many phones can automatically detect this using the APN. |