
370 Appendix A: Network Examples
Enterprise Edge 2.0 Programming Operations Guide P0911588 Issue 01
PRI dialing plan example for 2-way DID
The following list shows the general steps involvedin configuring a dialing plan for
two-way DID using a Public service. In this example the user dials the prefix 8 to
place a call over a PRI line.
1. Choose Resources, Telephony, Hardware and configure the DTI (EE-DTM)
for PRI.
2. Select Public as the protocol.
3. For incoming calls, program target lines to match the DID digit that is being
received on the PRI interface.
4. Set Dial Out to None.
5. Select PRI-A as the line pool.
6. Set ServiceType to Public.
7. Choose Services, Routing Service to enter a Destination Code (8 in this
example).
8. Set Absorb Length to All.
9. Provide access to the PRI Pool for the set that you are dialing out from. This is
programmed in Terminals & Sets.
10. Define received digits for target lines.
11. Define limits for incoming and outgoing public calls, see Programming Call
by Call service selection on page 168.
Note: 2-way DID does not have to be configured for Call-by-call service.
PRI DID and 2-way DID
When configuring PRI DID with 2-way service, the channels programmed as DID
at the CO must be the lowest B-channels on PRI. On your Enterprise Edge system,
the BchanSeq mode must be set to descending. In this configuration, all calls on
PRI must be Public service.
For example, channels 1 to 4 are configured as DID at the CO. The CO uses
ascending mode for B-channel selection, and Enterprise Edge uses descending
mode.
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