Nortel Remote Office 9150, Руководство по установке и администрированию

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12 Remote Gateway 9150 Installation and Administration Guide
Remote Gateway 9150 description Standard 4.0
Operational characteristics
This section provides details on how the Remote Gateway 9150 unit functions.
System security
This section describes the security levels that are supported for controlling
access from the Remote Gateway 9150 unit to the RLC on the host PBX.
„
No security
When no security measures are used, the RLC accepts all incoming calls
from the Remote Gateway 9150 site.
Use this level with caution as it can be prone to unauthorized use. For
example, a user in your site could accidentally, or intentionally, enter a
trunk number for another site and place long distance phone calls through
this connection.
„
Caller Identification (ID)
When Caller ID is used, and the PSTN routes the call, the RLC identifies
the Remote Gateway 9150 unit’s calling line identification (CLID). If the
CLID matches the remote number configured on the port assigned to the
Remote Gateway 9150 unit, access is granted. If the incoming call’s CLID
does not match, access is denied.
Note: Caller ID authentication cannot be performed over the IP network.
„
Provision ID
You can use Provision Identification (ID) authentication over the IP
network or PSTN. When you choose Provision ID, the Remote Gateway
9150 unit sends its 10-digit security identifier (password) for each
connection request. The RLC compares the security identifier with the one
configured on the RLC port where the Remote Gateway 9150 unit is
assigned. If the security identifiers match, access is granted.
If the security identifiers do not match, then an event is recorded in the
Remote Gateway 9150 unit system log (you can view the system log in
Configuration Manager). The telephone that was used to place the call
displays a message indicating that communications with the host PBX are
down.