A wireless modem can be described as a device that is connected to a 
wireless network rather than a telephone line. Computers that use a wireless modem are linked directly with the wireless internet provider (IP), thus allowing access to the Internet. This type of modem is capable of performing at speeds very similar to those of dialup modems, which is much slower than a broadband Internet connection. What kinds of Wireless Modem Interfaces are Available?
Some of these devices are able to be connected directly to a person’s personal data assistant (PDA) or to a notebook computer. Types of available interfaces include:
1. Serial Ports
2. Compact Flash Cards.
3. Universal Serial Bus (USB)
4. Personal Computer Memory Card Association (PCMCIA) Cards.
Certain wireless modems are available that are capable of connecting to one’s cellular telephone, causing it to function as a wireless modem.
What Wireless Modem Networks are Available?
Every type of wireless modem was created especially for the purpose of accessing one specific type of wireless network. Those networks that provide support for available wireless modems are:
1. The Cellular Digital Packet Data, or CDPD
2. The General Packet Radio Service, or GSM GPRS
3. The Enhanced Data GSM Environment, or GSM EDGE
