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You have installed your internal modem but it does not respond at all or it seems to work
intermittently.
With PCs, suspect COM port and IRQ conflicts.
What you type does not appear on the screen.
Enable command echo by issuing the
ATE1
command. Alternately, you may be able to turn on
Local Echo in your software.
Two letters appear on the screen for every one you type while in the command state.
Disable command echo by issuing the
ATE
command. You can also solve this problem by using
your telecommunications software to change your computer setting to full duplex operation.
You type
AT
followed by a carriage return and the modem does not acknowledge it with the
OK.
result code.
You are not in the command state. Enter the escape code (
+++
) to switch from online state to
command state.
or
Your computer is set to a rate other than 300, 1200, 2400, 9600, 19,200, 38,400, 57,600, or 115,200.
Use your software to change your computer rate to one of these rates.
or
Result Codes may be disabled. Issue the
ATQ
command.
or
your computer’s serial port is not working properly (external modems only). Contact your local
computer dealer for assistance.
You type
AT
followed by a carriage return and the modem returns a Ø.
Your modem is set to use numeric result codes instead of verbose result codes. Use
ATZ
or issue
AT&F
. If this solution does not solve your problem, contact Technical Support for assistance.
I
S
THE
M
ODEM
C
ONNECTING
TO
THE
D
EVICE
ON
THE
O
THER
E
ND
?
Refer to your
Getting Started
manual, along with
Communication Standards
in this
Reference Manual for information on modem connections.
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