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Signal Strength
The signal strength of the WWAN connection is indicated by the number of bars that appear in the signal
strength icon in the Title bar at the top of the window.
Voice and Data Communication
Dolphin terminals with integrated GSM/HSPA+/UMTS/GPRS/EDGE radios are optimized for the follow-
ing two-way voice and data communications:
Voice: GSM voice data (dial-up)
Data: Available speed depends on the wireless network carrier and their supported packet-data technol-
ogy in addition to network conditions.
GPRS Class 10: data transmission max. 85.6 kbps (DL), max. 42.8 kbps (UL)
HSPA+: data transmission max. 14.4 Mbps (DL), max. 5.76Mbps (UL)
UMTS: data transmission max. 384 Kbps (DL), max 384 Kbps (UL)
EDGE (E-GPRS) Class 10: data transmission max. 237 Kbps (DL), max. 118 kbps (UL)
You can use the GSM radio for voice communication and data communication, but not at the same time.
If you want to communicate over the phone (voice), you cannot send data. If you want to send data, you
cannot use the phone.
Icon Indicates…
The signal strength of the radio connection.
The signal strength of the phone (voice) connection;
see GSM/HSPA+ Global Radio Dolphin Models on
page 9-5.
The signal strength of the data connection; see Data
Communication (GSM/HSPA+ Global Radio Dolphin
Models) on page 9-9.