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Signal Strength
On terminals equipped with a WWAN (voice + data) radio, 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 (voice + data) radios are optimized
for the following two-way communications:
Voice: GSM voice data (dial-up)
Data: Available speed depends on the wireless network carrier and their supported packet-data
technology 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)
Note: You can use the GSM radio for simultaneous voice and data communication on a UMTS (3G) network only.
On a GSM network, 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 Voice Communication, Using
the Dolphin as a Phone on page 9-3.
The signal strength of the data connection; see Data Communication (GSM/HSPA+
Global Radio Dolphin Models) on page 9-7.
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