Ericsson R250s Pro User Manual

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Glossary

PIN

Personal Identification Number – a code used for all GSM-based phones to

establish authorization for access to certain functions or information. The PIN

code comes with your subscription.

PIN2

Personal Identification Number 2 – an authorization code which is used only

for special services.

PUK

Personal Unblocking Code – used to unlock a blocked SIM card. This comes

with your subscription.

Push-To-Talk Mode

When the phone is set to Push-To-Talk mode, all calls are carried out in semi-

duplex. This means that the microphone is muted until the user presses a

“Push-To-Talk” button. This is a useful function to avoid disturbing back-

ground noise during a group call.

Roaming

Within your home network, this means that your mobile phone automatically

sets up communication procedures with different radio base stations when on

the move.

Semi-Duplex

In handsfree equipment, full duplex means that the connection is open for

both parties to talk simultaneously. The opposite, simplex, is when it is open

to one at a time. Semi-duplex gives close to, but not complete, duplex

functionality.

Service Provider

a company that provides services and subscriptions to mobile phone users.

Short Message Service

(or SMS) allows messages of up to 160 characters to be sent and received via

the network operator's message centre to your mobile phone. Messages are

stored if the phone is off or out of reach ensuring that they reach you. To use

this service, it must be supported by your network.

Scroll

pressing the left or right arrow key to move between the menus.

Select

scrolling to a menu then pressing the

Y E S

key on the phone.