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Using Shorthold Mode 74

… Charged to the RAS server

The RAS client calls the RAS server and requests a callback. The RAS server establishes

the connection using the callback function of RAS, initiates the shorthold and reconnects

the subsequent calls.

For example, in the case of remote workstations, users can call the company server and

have the RAS server call back. This ensures that the server bears all charges for the call.

Client configuration (see Shorthold Settings on page 31):

• Shorthold Mode = selected

• Shorthold Time = 0

Server configuration (see Shorthold Settings on page 31):

• The RAS callback mode must be activated (see RAS server setup on page 69).

• No different MSNs should be assigned to the RAS ports. This will ensure that not just

one server port will be available on the first call or for the client’s ‘notification’ (see

Phone numbers/extensions and subaddresses

on page 28).

• Shorthold Mode = selected

• Shorthold Time must be set to a value not equal to zero and set to the charge period

or a multiple to enable the most efficient possible usage of already paid charge periods.

Note: The number checking file may be used for access control to prevent the charges

accepted by the server from uncontrolled use. See Number Checking

on page 33.

Shorthold and Multilink PPP

If the shorthold mode is to be used with Multilink PPP, the RAS ports on the RAS client

must definitely be assigned different MSNs. The RAS server requires the MSNs so that

it can reestablish the connection correctly after a shorthold.

Note: If the RAS client needs to use the callback, it cannot work with Multilink PPP.

However, if Multilink PPP is wanted, for example to transfer larger files more quickly, the

callback must be deactivated and the RAS client must carry the charges.

RAS Client

RAS Server

Initiates

connection

by Callback

Monitors

Shorthold

Callback

Query

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Eicon Networks S93 Installationsanleitung Seite 74