PORTABLE USB MODEM

Command:

Cn

Carrier Control

Values:

 

n=1

Default:

 

1

Description:

C0

Transmit carrier always off. (Not supported.)

 

C1

Normal transmit carrier switching (included for

 

 

backward compatibility with some software).

Command:

Ds

Dial

 

Values:

 

s=dial string (phone number and dial modifiers)

Default:

 

none

Description:

 

Dial telephone number s, where s may up to

 

 

40 characters long and include the 0–9, *, #, A, B, C,

 

 

and D characters, and the L, P, T, V, W, S, comma

 

 

(,), semicolon (;), !, @, ^, and $ dial string

 

 

modifiers.

 

 

L

Redial last number. (Must be placed

 

 

immediately after ATD.)

 

 

P

Pulse-dial following numbers in command.

 

 

T

Tone-dial following numbers in command

 

 

(default).

 

 

V

Switch to speakerphone mode and dial the

 

 

following number. Use ATH command to hang up.

 

 

W

Wait for a new dial tone before continuing to

 

 

dial. (X2, X4, X5, X6, or X7 must be selected.)

 

 

,

Pause during dialing for time set in register S8.

 

 

;

Return to command mode after dialing. (Place

 

 

at end of dial string.)

 

 

!

Hook flash. Causes the modem to go on-hook

 

 

for one-half second, then off-hook again.

 

 

@

Wait for quiet answer. Causes modem to wait

 

 

for a ringback, then 5 seconds of silence, before

 

 

processing next part of command. If silence is not

 

 

detected, the modem returns a NO ANSWER code.

 

 

^

Disable data calling tone transmission.

 

 

$

Detect AT&T call card “bong” tone. The

 

 

character should follow the phone number and

 

 

precede the user’s call card number:

 

 

ATDT1028807637853500$123456789

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Black Box MD403A user manual Carrier Control, Dial, ATDT1028807637853500$123456789

MD403A specifications

The Black Box MD403A is a powerful and versatile device widely recognized for its advanced technology and its ability to streamline data communication. Ideal for both personal and professional use, the MD403A is designed to cater to various environments, from small offices to larger enterprises.

One of the main features of the MD403A is its robust connectivity options. It supports multiple interfaces, including USB, HDMI, and Ethernet, allowing seamless integration with various devices such as computers, projectors, and IP networks. This flexibility makes it a popular choice for businesses that require reliable data transmission across different platforms.

The device is equipped with advanced signal processing capabilities that ensure high-quality data transfer. Utilizing cutting-edge technology, the MD403A minimizes signal loss, thereby enhancing performance and ensuring that the transmitted data remains intact. This feature is particularly crucial in scenarios where large amounts of data need to be transmitted quickly and without loss of quality.

Another significant characteristic of the Black Box MD403A is its user-friendly design. The interface is intuitive, making it easy for users of all technical abilities to navigate the system effortlessly. It typically comes with a straightforward setup process, minimizing downtime and allowing users to get up and running quickly.

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In terms of durability, the MD403A has a sturdy design that can withstand the rigors of daily use. Its compact form factor allows for easy portability, making it an ideal choice for professionals who are always on the move.

In summary, the Black Box MD403A combines advanced features, multiple connectivity options, robust security, and ease of use, making it an essential tool for modern communication needs. Its adaptability and performance make it a preferred choice for users seeking reliable data transfer solutions in diverse settings.