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Preliminary November 4, 1998
MAX 4000 Series Hardware Installation Guide
Quickstart
Overview of E1 line configuration
Figure 3-8. Incoming call routing using R2 signaling and hunt groups
With ISDN signaling, the hunt groups overlap the E1 channels, allowing each channel to
answer either voice calls or data calls. Figure 3-9 illustrates the use of ISDN D-channel
signaling. In this example, each hunt group includes all 24 channels. Analog callers call in to
the phone number 555-1111 and are routed to the digital modems in slot 5. Digital callers call
in using the phone number 555-2222 and are routed to the MAX bridge/router module in slot
9. To route the calls, you configure the Ans# parameter in both the Modem profile and the
Ethernet Mod Config profile.
Incoming ISDN calls contain information about whether the call is an analog voice call (from a
modem) or a digital data call. The MAX can automatically route voice calls to the digital
modem card and digital calls to the bridge/router module.
E1
