Synxcom SM9234D, User Manual

Page: 25 / 216

Installation
Page 25
Call Answer Testing
After powering-on the SM9256D modem, use the following procedure to test the modem’s ability
to answer a call.
1.
Configure your SM9256D modem to auto-answer incoming calls, as described under “Modem
Operation” on page 13.
2.
Use a telephone to call the SM9256D modem. Listen to the call to verify that the SM9256D
modem answers the call with its answer tone and performs its handshaking sequence in an
attempt to make a data connection. Hang up the handset of the telephone that originated the
call.
3.
Use another modem to call the SM9256D modem. Verify that the SM9256D modem answers
the call, makes a data connection, and turns on the MR and DCD LEDs.
Call Originating Testing
Use the following procedure to test the modem’s ability to place a call.
1.
Using terminal-emulation software such as HyperTerminal, issue the AT command
ATD<your number> where <your number> is the telephone number your modem is
connected to. For example, if your modem is connected to the line 555-1212, type
ATD5551212.
2.
You should hear the modem originate the call followed by a busy signal (since the modem is
dialing its own number). In addition, a BUSY result code should appear on the computer or
DTE monitor.
If you do not hear the modem placing the call, use the ATL and ATM commands to adjust the
volume and status of the modem speaker. For more information about these commands, refer to
page 74.
Note: If you try to establish a V.90 or V.92 connection, be sure the remote modem also
supports V.90 or V.92. Otherwise, you will not be able to establish the connection.