ZyXEL Communications Comet 3356, Руководство пользователя

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16 Basic Modem Operation
Result codes can originate from any of eight result code sets. The ATXn command lets
you choose which set of result codes your modem uses. By default, your modem uses
result codes equivalent to the ATX4 command.
Viewing S Register Values
Status registers (or "S-registers") contain values that determine the modem’s operating
characteristics. Whenever you send an AT command to your modem, you are actually
changing the value of an S-register.
You can use the Sr? command to view the value of S-register ‘r’. For example, to view
the value of S-register S0, which controls auto-answering, type ATS0? and press Enter.
The modem responds with a three-digit character showing the value of this register,
followed by OK. A value of 002, for example, means your modem will auto-answer
incoming calls after the second ring.
Changing S Register Values
You can use the ATS0=n command to change the value of an S-register.
For example, to have your modem auto-answer an incoming call after two rings, set S-
register 0 to 2. Be sure the n value is between 1 and 255. If n is set to 0, your modem
will not answer incoming calls.
Non-Volatile Memory
The Comet has non-volatile memory set aside for storing user information such as
frequently used phone numbers and default command settings. This latter is particularly
useful when you use your modem to call a variety of different locations that require
different settings. For this reason, the Comet provides a number of user “Profiles” that
can be accessed through simple AT commands. This section covers the topics of storing
phone numbers, and saving default settings in the power-on profile.
Storing Phone Numbers
The AT command to store a phone number is in the format AT&Zs=n.
The ‘s’ is a number from 0 to 3 that represents the location in memory that the phone
number is to be stored, and the ‘n’ is the phone number itself.
Example: To store the number ‘1-714-555-1212’ in memory location ‘2’, type:
AT&Z2=17145551212<Enter>
You can store up to 4 telephone numbers.
Dialing Stored Phone Numbers
The AT command syntax used to dial a store number is ATDS=n.