Wireless Glossary (E)
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Ear-to-Mouth Ratio the relative positions of the mouth and ear on an adult head. Manufacturers pay particular attention to this ergonomic factor when designing all phones.
Early Termination Fee see Cancellation Fee.
EDGE (Enhanced Data rates for Global Evolution) a technology being promoted by the TDMA and GSM communities that is capable of both voice and 3G data rates up to 384 Kbps. The standard is based on GSM standard and uses TDMA multiplexing technology.
EFR (Enhanced Full Rate) a feature that allows users with EFR compatible handsets to benefit from significantly better call quality through enhanced digital coding. (network and subscription dependent feature -not available in all areas).
EL (Electro Luminicent) a technology used to produce a very thin display screen, called a flat-panel display, used in some handheld computers.
Electronic Lock see Lock.
Electronic Serial Number see ESN.
E-Mail the electronic transfer and storage of written messages.
E-mail Capability the ability for a mobile phone or PDA to send and receive e-mail. With a modem and installed or optional third party software, you can send and receive e-mail with most mobile phone and PDAs. E-mail capability, however, is limited by the service or method you use to access the e-mail.
Emergency One-Touch Dialing a memory location reserved for storing an important number. The number can be accessed and called even if the phone is locked.
EMS (Enhanced Message Service) an extension of SMS that enables the sending of a combination of simple melodies, images, sounds, animations and formatted text as a message to another EMS-compatible phone.
END a key on a wireless phone which terminates a call.
Enhanced Full Rate see EFR.
Enhanced Message Service see EMS.
ERI (Enhanced Roaming Indicator) a feature to indicate whether a mobile phone is on its home system, a partner network, or a foreign (roaming) network. ERI capable handsets, when loaded with the proper software and PRL, will illustrate the home or roam condition using a banner with text on the handset display. While many phones can indicate home vs. roaming via an icon, ERI phones can clearly indicate the third “partner network” status, which may carry a different rate schedule.
Enhanced Roaming Indicator see ERI.
Enhanced Services services available from wireless carriers that provide consumers with value-added telephone services, such as voicemail and call waiting.
ESN (Electronic Serial Number) a unique unchangeable number that is embedded into the phone and is transmitted by the phone as a means of identifying itself within the system.
ETSI European Telecommunications Standards Institute.
Evenings/Weekends a designated time when calling rates are low or free. These times are generally from 7pm to 7am on weekdays and all day Saturday and Sunday.
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