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What is the difference between GSM and GPRS/EDGE/WCDMA/HSDPA technology?
GSM technology is typically used for voice calls and text messaging. GPRS/EDGE/WCDMA/HSDPA
technology provides a data connection to the wireless phone network that can be used for web
browsing, Multimedia Messaging Service (MMS), or accessing your corporate network.
NOTE: Data Services or multimedia messaging may result in additional charges. Check with your
service provider for data services and cost.
If you have trouble with your connection, contact your service provider.
What bands does my device support?
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Quad Band GSM/GPRS/EDGE: 850, 900, 1800, 1900 MHZ
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Tri-Band WCDMA/HSDPA: 850, 1900, 2100 MHZ
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HSDPA 3G
I cannot use certain call functions. What should I do?
To use certain advanced call functions, such as Call Forwarding or Call Barring, you might need to
subscribe to these services from your service provider. Contact your service provider to determine
whether you are subscribed to advanced call functions.
What do I do if my device shows No Service?
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If you are getting “No Service” on your phone, try resetting your phone. Pull the battery out and
reinsert it.
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Move to a different location with better reception.
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If you are inside a building, try going outside to get better coverage.
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Contact your carrier to clarify coverage area and service outages.
158 Chapter 33 Frequently asked questions