Advanced Features |
Note: You cannot use CHAP when you make Multilink PPP calls. CHAP is disabled by default, so this should not be a problem. However, if CHAP is enabled, before you make a Multilink PPP call, you must disable CHAP by sending the command, ATS84=1, to the ISDN modem using your communications application. If you are using a Macintosh computer, use the ISDN Setup application to turn off CHAP. For information, see the “CHAP Blocking” section on page
Using Dynamic Bandwidth Allocation
The ISDN modem supports Dynamic Bandwidth Allocation (DBA). When Dynamic Bandwidth Allocation is enabled (by default), you can place an analog (voice) call from a device that is attached to one of the analog device ports while a Multilink PPP call is active. The ISDN modem will automatically use one of the B channels for the analog call. Once the analog call ends, the ISDN modem automatically reestablishes that channel for Multilink PPP operation. Your voice call will be billed at ISDN rates because the signal is carried over your ISDN line.
Note: If you are on the receiving end of a Multilink PPP call and you place a voice call, one of the B channels will be used for the voice call. However, when the voice call is finished, the B channel used for the voice call cannot be returned to the Multilink PPP call. The B channel can only be returned to the call if you initiated the Multilink PPP call.
