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• Ensure the modem is installed according to the instructions in
• Turn on the computer and the modem.
5.4.1 M
D
ANUAL
IALING
After turning the modem on the LCD shows the software version and advances to main menu 1.
• Press TALK/DATA. The display will show V.32 9600 TALK.
• Pick up the handset and dial the phone number of the remote modem.
• If the remote modem is set for autoanswer, a high-pitched tone (a 2100-Hz answer-back tone) is
heard.
• Press TALK/DATA. This puts your modem in the DATA mode and data transfer can begin.
The display shows TRAINING as the modems negotiate a connection and then ONLINE when the
connection is made.
5.4.2 M
A
ANUAL
NSWERING
The modem will autoanswer in both TALK or IDLE mode. To manually answer the phone for
conversation, set the front panel to TALK and the autoanswer register (S0) to a ring count value high
enough to allow answering the call before autoanswer does.
When conversation is completed, both parties press TALK/DATA and a data connection is established.
5.4.3 A
(F
UTODIAL
RONT
• Starting at the V.32 9600 IDLE display, press NO. The display advances to DIAL STORED
NUMBER?
• Respond to the prompts until you reach the desired number to dial.
• Press YES. The modem will go through the dial sequence and establish a connection.
• You can follow this sequence of events by observing the LCD and listening to the speaker.
5.4.4 AT C
D
OMMAND
Starting from V.32 IDLE or TALK and using a computer in terminal mode, enter ATD and the telephone
number to dial or ATDS and the memory location to dial. When the enter key is pressed the dial
sequence starts. You can follow the status of the dial sequence by observing the monitor screen and
listening to the speaker.
5.4.5 S
C
OFTWARE
OMMUNICATION
A large variety of software packages compatible with the modem is available. Most of them provide a
means for the operator to select options, insert phone numbers, and establish communications with a
remote station. See the instructions for your software.
5.5 Error Control
The modem provides error detection and automatic retransmission of data upon detection of an error.
The retransmission buffer is 2048 bytes long and can accommodate up to eight frames. MNP levels 2, 3,
4, and 5 are supported. Level 2 is the asynchronous link version, level 3 is the synchronous link version,
level 4 is synchronous with optimized headers for increased efficiency, and level 5 implements data
compression for increased data throughput. When making a call in dial mode, the modem negotiates the
highest protocol common to both modems. If the connection cannot be established, the modem continues
through successive protocols until all are tried or a connection is made.
P
)
ANEL
IALING
P
ACKAGES
CHAPTER 5: Operation
.
Chapter 3
4 3
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