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Security Functions
The TA128 provides security functions that may be enabled to
prevent unauthorized connections. Two types of security functions
are provided.
Security Types and Levels
Type 1 security is to be used when the remote TA is a ZyXEL ISDN
TA.
Type 2 security is to be used with non-ZyXEL remote TA’s.
With a Type 1 connection, the dial-in (remote) TA will send in its
supervisor password for matching with the local TA128’s pre-stored
password list. With a Type 2 connection, the remote terminal will be
prompted to enter the password at the initial connection and the local
TA128 will match the entered password with the pre-stored
password list.
The two types of security are summarized in the table below:
Type 1 Security
Type 2 Security
Remote
(Calling) Site
ZyXEL ISDN device
only
Can be TA of any
brand
Password Check Automatic
Interactive
Protocols
Supported
X.75, V.120
Any data protocol
AT Commands
*G1 for Level 1
security
*G2 for Level 2
security
*G3 for Level 1
security
*G4 for Level 2
security
*G5 for Level 3
security
Summary of Contents for Omni TA128
Page 1: ...Omni TA128 User s Manual Version 2 0 ZyXEL ACCESSING INTERNET INTRANET...
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Page 136: ...124 Command Options Function Description Ref VC View the Call back Number table...
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