Enterasys Networks CSX7000 Manuel d'utilisateur télécharger pdf (Page 385)

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Central Site Remote Access Switch 385

ONFIGURING

ALL

ONTROL

D Channel Callback

If you use user level security for authentication: configure devices on CSM as well. This will

provide access to the following CSM call control management features: call restrictions,

maximum bandwidth, and grouping (in addition to the call logging feature).

User level security and CSM call control management work together as follows: CSM allows a

device to connect under an alias name until the user can be verified by its authentication server.

Once the user is properly authenticated, the device’s name is forwarded to the CSM. CSM can

then further determine whether or not the device should be allowed connectivity at this time.

Possible reasons CSM may disconnect the device’s call:

• Call restrictions reached for this device.

• Maximum bandwidth reached for this device.

• Device and CyberSWITCH to which it is connected are not part of the same group.

• Device on a reserved channel and not a reserved device.

• Device not defined in CSM.

Note: The alias assigned to initial calls is REMOTEx. Be sure you do not use this name for any

of your device names when configuring CSM or your authentication server.

IMITATIONS/CONSIDERATIONS

• CSM must not initiate outgoing connections through the CyberSWITCH using non-CSM au-

thentication.

• CSM as Call Control Manager may not be disabled if CSM is the authentication agent.

• CSM as Call Control Manager is not disabled when CSM as authentication agent is disabled.

• CSM does not override information found on the authenticating server except for: call restric-

tions, maximum bandwidth, and grouping.

• CSM does not allow device names of REMOTEx to be configured.

D CHANNEL CALLBACK

This feature allows the CyberSWITCH to use the calling ID from the D channel on an incoming

ISDN call to identify a device using CSM, reject the incoming call, and call the device back. By doing

this, all phone charges can be incurred by the central site rather than the remote sites.

Note: This option is only available if you are using CSM for device level authentication. Also,

callback is currently implemented for only PRI NET5 and BRI NI1 switch types. Other

switch types will be added later.

Modem callback is also available. No CyberSWITCH configuration changes are necessary. All

configuration changes are made through CSM for modem callback. Refer to CSM user

documentation for configuration instructions and to CyberSWITCH documentation for verification

procedures.

CONFIGURING D CHANNEL CALLBACK

USING CFGEDIT

1. From CFGEDIT’s Options Menu, select Call Control Options.

2. Select D Channel Callback.

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Enterasys Networks CSX7000 Manuel d'utilisateur Page 385

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