Multi-Tech Systems ISIHP-4U, ISIHP-4S 4258513 16126313550 12138880123, Values n = Default n/a

Terminal Adapter AT Commands & S-Registers

64258513

7

8 16126313550

9 12138880123

DSn Dialing a Stored Telephone Number

Values: n = 0–9

Default: n/a

To dial a stored telephone number, type ATDSn in terminal mode, where n is the location of the number you want to dial. For example, typing ATDS6 <cr> dials a telephone stored in memory register 6 location.

$Dn Persistent DTR Dialing

Values: n = 0, or 1

Default: $D0 (Disabled)

Enables or disables persistent DTR dialing (PDD). PDD causes the terminal adapter to automatically and continually redial stored telephone number 0 when the port has no active calls and DTR is high.

$MBn

%En Escape Sequence Options Values: n = 0–5 Default: %E1 and %E4

By default, the modem responds only to the +++ escape method. However, you can use the %E command to set the modem to respond only to the <break> method, to respond to either +++ or the <break> method, or to ignore both methods and not escape.

%E0 Modem won’t escape %E1 +++ escape method %E2 <BREAK> escape method

%E3 Both +++ and <BREAK> escape methods %E4 Disable OK response to +++

%E5 Enable OK response to +++

%E1 %E5 Enable +++ method and OK response

MultiModemISI Hybrid Series, ISIHP-2S/2U/4S/4U/4SD 123