Huawei MU509 At Command Interface Specification page 219

HUAWEI MU509 HSDPA LGA Module
AT Command Interface Specification
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Issue 04 (2013-01-28)
The link has not been established yet
The link has been established already
Fail to establish link
Fail to bind the specified port
Fail to connect to the specified address
The server has not been established yet
The server has been established already
Fail to establish server
Fail to bind the specified port with server
Fail to establish listening
The network has not been opened yet
The network has been opened already
Fail to open network
Invalid domain name
Fail to resolve DNS
Port error
Remain data is sending
Previous command is not complete
Too many data to be sent
Forbidden operation in transparent mode
Invalid port for transparent mode
Fail to send data in transparent mode
Fail to send data because it is too long
Quit transparent mode because buffer is full
More than one link in physical port
The physical port is in listen state and has no client
Quit transparent mode because link is down
sys state error
parameters error
spn file wrong
spn file accessed denied
spn file not exist
another SPN query operation still not finished
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Appendixes
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