Zte -C E520 User Manual page 102

ZTE-C E520 User Manual
Can not connect to the network
Check whether the phone is in the CDMA network service area or move to other
places to try again.
Can not receive a new message
Check whether the network condition is OK, and then check whether the Inbox is full.
If you turn off the Auto Delete Inbox function, you may not receive new messages
when the inbox is in full status. You should delete some messages and change the
settings.
Can not establish Three-Way Call
Check the network condition and whether you have applied this service from your
network provider.
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