Datalogic Memor 10 User Manual page 136

Connections
You can use the WWAN 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
NOTE
cannot use the phone.
Area coverage and 3G performance may vary, due to
environmental
interference caused by other devices (microwave ovens,
NOTE
radio transmitters, etc.).
130
conditions, access point types
Memor™ 10
or