Chapter 7 - Callback Security and Remote Configuration

7.5Remote Configuration/Callback Security S-Registers

The following S-Registers are used with Remote Configuration and Callback Security features.

Remote Configuration Character (S13)

S13 defines the modem’s remote configuration escape character. When the S13 character is entered three consecutive times from a remotely connected site, your modem responds to it with its Remote Configuration procedure.

Units: ASCII

Range: 0-127

Default: 37 (% sign)

Callback Time Delay (S15)

S15 defines the time delay for Callback attempts after initial passwords have been exchanged between modems.

Unit:Seconds

Range: 10-255

Default: 20

Callback Attempts (S16)

S16 defines the number of Callback attempts after initial passwords have been exchanged between modems.

Unit:

1 Attempt

Range:

1-255

Default:

4

Failed Password Attempts (S26)

S26 counts the number of times there has been a failed password attempt. For example, if you entered ATS26? the message 003 would be displayed, meaning someone has failed three times to gain access to your modem using its password security system.

Units:

1 failed attempt

Range:

0-255

Default:

0

Local Inactivity Timer (S29)

S29 defines the amount of idle time that can elapse between AT commands after the SETUP password has been entered. If this timer expires, the LOGIN and SETUP passwords will have to be re-entered.

S29 only takes effect when the modem has been sent a #DB1 command, which secures the modem from local and remote configuration or dialing (i.e., no AT commands can be sent until the LOGIN and SETUP passwords have been entered).

Units: Minutes

Range: 1-255

Default: 20

Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide

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Multi-Tech Systems MT2834BA, MT2834BL manual Remote Configuration/Callback Security S-Registers