3Com 3C892 - page 50

50 CHAPTER 5: CONFIGURING THE ISDN LAN MODEM

■Use one B channel: When selected, one B channel is used to connect to

this service provider.

■Add second B channel as required: When selected, the second B channel

is added when the first B channel reaches a certain threshold. The threshold

default is 60%. To change the threshold default, refer to “Changing Da ta

Call Parameters” in Chapter 6. The second B channel is temporaril y

removed when you place or answer another call.

■Use two B channels: When selected, both B channels are used to connect

to this service provider (that is, always use Multilink PPP). Note that this

prevents another call, data or voice to be placed or received as there is no

available bandwidth (that is, the second B c hannel cannot be temporarily

removed).

13 Specify the B channel rate or select TollM ize r.

Leave the B channel rate set to 64 Kbps unl ess your telephone company and the

locations to which you will be connect ing only support 56 Kbps.

TollMizer makes a 56 Kbps data call over a voice circuit allowing you to save the

typical cost difference between a voice and data call. Note that the destination you

are calling must also support this feature (also referred to as Switched 56

Permissive or Data Over Voice). Check with your telephone company and ISP to

make sure that they support TollMizer.

14 Click Continue.

A call is launched to your ISP. A congratulations message appears when you

successfully connect to your ISP. This verifies the correct configura tion of your ISDN

line and ISP connection.

This configuration covers the typica l parameters needed to connect to your ISP.

There are additional parameters for this ISP connection which have been set to a

typical default. These parameters include Domain N ame, Compression, NAT, and

WAN Link IP Address. In addition, you can enter a second telephone for

connection to your ISP. For information on these parameters and instructions for

changing their default values, refer to “Editing Service Provider Profiles.”

15 Click Continue to connect to the ISDN LAN Modem Web site where you shou ld

information.

For all the latest, up to date information about your ISDN LAN Modem, visit

http://www.remoteacces s.3com.com/support/docs /lanmodem/welcome.html

If you cannot access a Web site and your computer has a static IP address, refer to

“Configuring a Static IP Address on the ISDN LAN Modem.” If you experience any

other problems, refer to Chapter 9, “Troubleshooting and Maintena nce.”To return

to the LAN Modem’s main configuration page, click Configure Modem from th e

Web page.