User's Manual

Ab le to establish a conference call involving up to five additional

parties.

DTMF (Dual-Tone Modulated Frequency)

You send DTMF signals when you enter numbers by pressing the

digit keys.

GPRS—General Packet Radio Service

GSM (Global System for Mobile communication)

GSM is the pan -European standard for digital cellular telephone

service. It is also one of the technologies available in the Americas.

GSM was designed for markets to provide the advantage of automatic,

international roaming in multiple countries. The SIM (Subscriber

Identification Module) card is a vital component in GSM operation.

The user can store all relevant data for the phone on a removable

plastic card. The card can be plugged into any GSM compatible phone

and the phone is instantly personalized to the user.

GSM900

GSM900, called GSM, is the most widely used digital network and

now operating in more than 100 countries around the world.

GSM1800--The digital GSM network used in Europe and Asia.