Framed Dial Requests

Framed Dial Requests

Introduction

Dial-back requests can also be queued from a client that connects to the server using

PPP.Unlike PPP, the SLIP protocol does not include a method of negotiating connection options including whether a call-back should be attempted and the phone number to which the call-back should be placed. Therefore, only PPP clients can request a call-back.

Changing PPP Characteristics Examples

In the following paragraphs, the default protocol for the access server’s port is assumed to be set to PPP.

Configuring Dynamic Access

If the modem on that port will be used for both the incoming and the outgoing calls, the port must allow dynamic access, as shown in the following example:

Local> CHANGE PORT n DEFAULT PROTOCOL PPP

Local> CHANGE PORT n ACCESS DYNAMIC

Configuring Call-Back

To request a call-back using a PPP client, the access server’s port must first allow the call-back negotiation to be started. This is done using the command:

Local> CHANGE PORT n LCP CALLBACK ENABLED

If the PPP client and the access server successfully negotiate the use of call-back, the access server will attempt to queue a dial request. The port must be set dedicated to the dialer service to be used in placing the return phone call.

Local> CHANGE PORT n DEDICATED SERVICE dialer-service-name

Guidelines

1If you do not specify a service name, the port’s preferred service is used. If the preferred service contains "*" as the number specified in the dialer service, the access server prompts the user to enter a telephone number.

2For a PPP connection, the port is usually set to have a dedicated service name of PPP. However, as long as the port’s default protocol is set to PPP, you can specify any dedicated service name.

21-16 Managing Dial Services