Nortel Networks Circuit Card User Manual

 NT7D16 Data Access card

Call processing prompts are in upper case letters only. Other prompts consist 
of both upper and lower case characters, and the dialogue session depicts the 
actual upper/lower case letters used.

All prompts are preceded by the Carriage Return and Line Feed ASCII 
characters (<CR>, <LF>).

Prompts requesting user input are terminated with the ASCII colon (:).

Prompts requiring a Yes or No answer are terminated by a question mark (?), 
followed by a list of allowable responses. The default response, if allowed, is 
bracketed.

In addition to the methods mentioned above, which are common to both 
Hayes and keyboard modes, keyboard dialing supports the following method 
to abort a call during the dialogue phase.

•

Sending the Control Z character (simultaneously pressing the control and 
Z keys) sends a message to the DAC to immediately abandon the data 
call setup.

All user dialogue must begin with Autobaud detection. This allows the DAC 
to determine the user equipment baud rate. During this phase, only <CR> will 
be recognized by the DAC. All other entries are ignored, and no entries are 
echoed. Once a valid <CR> is detected, the DAC responds with the New 
Menu prompt at the baud rate detected. If a fixed rate has been determined by 
the downloaded parameters, the DAC will look for that rate. If the rates agree, 
the dialogue phase begins. If not, the following prompt is sent to the user:

After receiving a number of invalid responses, the DAC reverts to autobaud 
detection, since the terminal data speed may have changed.