Configuration using a Macintosh computer 5-11
V.120 Frame Type. The V.120 Frame Type
Enable Multilink PPP
The Enable Multilink PPP area lets you enable and disable the modem’s Multilink PPP and dynamic bandwidth allocation features and define certain parameters for Multilink PPP. For more information, see the “Using Multilink PPP” section on page
Enable Multilink PPP. Check the Enable Multilink PPP box to turn on the Multilink PPP feature. When Multilink PPP is on, the Netopia ISDN Modem can combine two B channels to allow up to 128 Kbps of data to pass through the ISDN line. You must enable this option in order to use the Dynamic Bandwidth Allocation feature.
Dynamic Bandwidth Allocation. Check the Dynamic Bandwidth Allocation box to turn on the Dynamic Bandwidth Allocation feature. When Dynamic Bandwidth Allocation is on, you can initiate a phone conversation after you have established a dual B channel connection. When you initiate the phone conversation, the modem disconnects one of the B channels and uses it for the voice call. For more information, see the “Using Dynamic Bandwidth Allocation” section on page
Second DN. (This option is only available for the Netopia ISDN Modem Model 411.) If necessary, enter a secondary directory number (DN) in the Second DN field. The Second DN number is the second number of a destination you call. In most cases, you only need to enter a second directory number if your telephone company uses a switch other than an AT&T 5ESS switch or the destination you are calling does not have its ISDN lines organized in a hunt group. (A hunt group is a collection of phone lines that can be accessed by the same phone number.)
