Apple Newton Utilities Guia do Utilizador descarregar pdf (Página 882)

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CHAPTER 25

Modem Setup Service

25-2 About the Modem Setup Service

Modem setup packages can be supplied by modem manufacturers, or can be

created by other developers.

A modem setup package can contain four parts:

■ General information. The beginning of a modem setup package speciﬁes

general information about the modem corresponding to the package—for

example, the modem’s name and version number.

■ A modem tool preferences option. The part of the package that contains

speciﬁcations that conﬁgure the modem controller. For a description of this

option, see “Modem Preferences Option” (page 21-34) in Newton Programmer’s

Reference.

■ A modem tool proﬁle option. This part of the package describes the

characteristics of the modem—for example, whether the modem supports error

correction protocols. For more information on this option, see the section

“Modem Proﬁle Option” (page 21-38) in Newton Programmer’s Reference.

■ A fax proﬁle option. This part of the package describes the characteristics of

the fax—for example, the speed at which faxes can be sent and received. This

option is particularly useful to limit fax speeds over cellular connections.

If a modem supports both cellular and landline operations and does not

automatically conﬁgure itself, you need to create a separate modem proﬁle or setup

for each operation. If you want to give the user the option to limit fax speeds,

which is a common practice with cellular connections, you may want a third proﬁle

that speciﬁes the fax proﬁle option.

Note

The constants and code shown in this chapter apply to the

NTK project that is provided by Newton Technical Support. This

project provides an easy way to create modem setups.

◆

The Modem Setup User Interface 25

The user chooses the current modem setup in the Modem preferences, as shown in

Figure 25-1 (page 25-3). The Modem Setup item is a picker, which when tapped

displays all of the modem setups installed in the system. The chosen modem setup

is the default used by all applications.

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