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S

SIM or Subscriber Identity Module

SIM cards are small smart cards that contain subscriber identification data and the identity of the user's carrier. SIM cards are used in GSM and iDEN networks. Because the SIM card is what uniquely identifies the user, a user can remove his SIM card from one phone and insert it into another phone, that phone will now make calls on his account and ring when his mobile number is called. Which ever phone has his SIM card in it is 'his phone' as far as the network is concerned. SIM cards also have data storage space for address books. See also- ESN, R-UIM card

 

Author Name: IronHelix

Single-Band Phone

Operates only on the Nationwide Sprint PCS Network and has no roaming capability. Operates on 1900 MHz CDMA networks.

 

SMS or Short Messaging Service

A cell phone feature that allows PCS users to send and transceive short text messages. These messages are sent from cell phone to cell phone. This is not the same as email.

Soft Key

A key immediately beneath the cellular phone display window performing the function currently listed on the cellphone display screen.

 

Standby Time

The length of time that a cell phone is completely ready to send or receive calls, but is not being used in a call. This is one way of evaluating the battery, as well as the efficiency of the cell phone.

 

Subscriber

A user of wireless or other service(s) bought from a service provider.

 

RD Glossary by Run Digital