Instruction manual

ATLAS 800 Series System Manual Async-232 Option Module

Configuration

Modem Write security: 3; Read security: 5

Configures an allocated modem for incoming and outgoing analog modem calls.

Selected options are issued to the modem when it is allocated to answer an

incoming call or initiate an outgoing call. Some options imply a negotiation

with the remote modem. These modem options may also be specified through

the AT command interface if enabled.

Out ISDN Call Type

(continued)

Audio Directs the call control software to request a 3.1 kHz audio circuit

as the bearer capability for outgoing calls. The Audio option is

used with an ISDN line configured for voice service. Selecting an

Audio call type guarantees a digital end-to-end ISDN connection.

Speech Speech direct the call control software to request a µ-Law speech

circuit as the bearer capability for outgoing calls. The Speech

option is used with an ISDN line configured for voice service. A

Speech call type does not guarantee and end-to-end digital

connection with some local and long distance providers.

Submenus Description

Highest Tx Bit Rate

Write security: 3; Read security: 5

Selects the highest bit rate the allocated modem will attempt to connect with to

the remote modem. Modulation scheme is automatically selected based on the

connection speed.

Lowest Bit Rate

Write security: 3; Read security: 5

Selects the lowest bit rate the allocated modem will attempt to connect with to

the remote modem. If the lowest bit rate or higher cannot be negotiated with the

remote modem, the call is disconnected. Modulation scheme is automatically

selected based on the connection speed.

Submenus Description (Continued)