Adtran L128 Manual Do Utilizador

Chapter 3: Terminal Menu Operation and Structure

Express L128/L128T User Manual

61202.070L1-1

configured for voice service.  In some areas, voice service costs 

less than data services.  A speech call type does not always

guarantee an end-to-end digital connection with some local 

and long distance carriers. 

 - Audio directs the call control software to request a 

3.1 kHz  audio circuit as the bearer capability for the outgoing

calls. The audio option is used with an ISDN line configured for

voice service.  In some areas, audio service costs less than data

services. An audio call type does guarantee a digital end-to-end

digital connection. 

 - 56K directs the call control software to request a 64 kbps

data circuit that is rate-adapted to 56 kbps.  Data 56 kbps is

intended for use in circumstances where interoperability with

Switched 56 service is desired.

 (def) - The default call type for ISDN service is Data 64 kbps. 

This directs the call control software to request an unrestricted

64 kbps circuit.

Write security: 3; Read security: 5
Selecting Yes (def) causes the Express L128/L128T to re-dial a call at the 56K 
call type if a 64K call type was unsuccessful.  This will not occur if set to No or 
if the original call type was other than 64K. 

Write security: 3; Read security: 5
This is the number of seconds between unsuccessful call attempts made dur-
ing dial-on-demand or during dynamic bandwidth.  The range is between 0 
and 255, with a default of 15 seconds.

Write security: 3; Read security: 5
This is the amount of time the Express L128/L128T waits for a call to be an-
swered before giving up the attempt.  Possible values are 15 secs (def), 30 secs, 
1 min, 2 mins  and 4 mins.