Technical Reference for ZyXEL omni.net series

Placing a Data Call

While placing a voice call can be as simple as dialing out with your analog phone, initiating a data call requires prior selection of a proper B-channel protocol. Here are some simple commands that will be useful when placing a call. The omni.net has the capability to automatically detect the B-channel protocol (V.120, X.75, or PPP) used by the answer site.

 

AT Command

 

 

 

Description

 

ATBnn

 

 

Changes ISDN B channel protocol setting.

 

 

 

 

 

 

ATDL

 

 

Re-dials the last dialed telephone number.

 

 

 

 

 

 

 

 

Table 24. AT Command for Placing a Data Call

 

Multi-Auto Dial Out (MDO) for Outgoing Data Calls

With the Multi-Auto Dial Out function, your omni.net automatically tries the outgoing data protocol with the predefined protocol sequence set by the commands [ATB90-97], as listed in the following table.

 

AT Command

 

 

MDO Protocol Trial Sequence

 

ATB90

 

PPP+X.75

 

 

 

 

 

ATB91

 

PPP+X.75+T.70+ISO8208+T.90+BTX

 

 

 

 

 

ATB92

 

X.75+T.70+ISO8208+T.90+BTX+PPP

 

 

 

 

 

ATB93

 

PPP+V.120

 

 

 

 

 

ATB94

 

V.120+PPP

 

 

 

 

 

ATB95

 

PPP+X.75+V.120 (* default for DSS1)

 

 

 

 

 

ATB96

 

PPP+V.120+X.75 (* default for U.S.A.)

 

 

 

 

 

ATB97

 

X.75+V.120+PPP

 

 

 

 

 

 

 

Note: Bundle call is not supported in MDO X.75+V.120+PPP

Table 25. MDO AT Command

Incoming Calls

This chapter provides guidelines for setting up the your omni.net to answer calls.

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