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ZTE G650/G651/G420/G120 GoTa Digital Trunking Phone
81
Service unavailable
Contact the
operators
PTT Call Failure
Network
disconnected
Refer to “Network
Connection Failure”
Call drop during
a call
Poor network signal
Move to other places
No ring for a
incoming call
The phone is set to
Silence, or the ring
volume is set to 0
Enter
Profiles
and
change the mode; or
check the ring volume
Prompt to input
PUK
R-UIM card is locked
due to successive
inputting false PIN
code for three times
Contact the operators
If the problems cannot be solved after the above handling, you may contact our
customer service personnel, or feed back your information directly by sending
emails to
. We will reply to you as soon as possible.