ZyXEL Communications omni.net LCD+M manual 103

Technical Reference for ZyXEL omni.net series

The three levels of security used in conjunction with the security types are described in the following table.

			Level 1	Level 2		Level 3
Password			Yes	Yes		Yes
Check
CPN Check OK			N/A	Call back
and S119.6=0
CPN Check OK			N/A	Keep the connection
and S119.6=1						Prompts the remote user to
						enter call back number
CPN			N/A	Disconnect
						for calling back.
nmatched
CPN not			N/A	Call back using the
Available				corresponding pre-stored
				number
AT Commands		[AT*G1] for Type 1 security		[AT*G2] for Type 1 security	[AT*G5] for Type 2 security
			[AT*G3] for Type 2 security	[AT*G4] for Type 2 security
Level 1 security					Level 3 security
Will only perform password checking.					Once the password is
With Level 1 security, the local omni.net ISDN					matched the local omni.net
TA will maintain the connection if the password is					ISDN TA will prompt the
matched, otherwise the line will be disconnected.					remote user to enter a call
					back number.
Level 2 security
Provides Calling Party Number checking and Callback. The callback number is
pre-stored in the password table.
If the password has been matched (in a maximum of 3 tries over a 40 second
time period) with its pre-stored password list, the local omni.net ISDN TA will
check the Calling Party Number (CPN) against the pre-stored number
corresponding to the password. If they are matched, the local TA will choose
either to keep the connection or to disconnect and then call back according to
the setting of bit 6 of S119:
	# S119.6=0 - Disconnect and then call back.
	# S119.6=1 - Keep the connection.
If the CPN does not match with what is stored in the table, the local omni.net
ISDN TA will disconnect the call. If CPN is unavailable in the SETUP message,
the local omni.net will disconnect the call and				then call back using the
pre-stored number corresponding to the dial-in password.

Table 54. three levels of security

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