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66 CHAPTER 2: DIAL PLAN
4 Click Remove.
CAUTION: You cannot remove a pretranslator if any device is currently
using it. If you want to remove the pretranslator, you must first remove all
devices from the Devices Using Pretranslator list.
Configuring the
Dial Plan for the
4ESS Protocol (T1)
The 4ESS protocol, used on T1 Digital Line Cards that are configured for
PRI operation, requires specific configuration entries in the NBX system
dial plan. If you purchase the 4ESS protocol and SDN (Software Defined
Network) service from your long-distance carrier, you must make dial plan
changes similar to those outlined in “
Configuring the Dial Plan for
Software-Defined Network Calls” on page 66. If you want to make long
distance calls or international long distance calls using the 4ESS protocol,
you must make dial plan changes similar to those outlined in
“
Configuring the Dial Plan for North American Long Distance” on
page 66
and “Configuring the Dial Plan for International Long Distance”
on page 67
.
Configuring the Dial Plan for Software-Defined Network Calls
In the NBX system dial plan, if you are using the 4ESS protocol and you
want to make SDN calls, you must configure a unique route to use for
SDN calls and include the letters SDN at the beginning of the dial string.
Example: The dial plan entry shown in adds the characters SDN (must be
capital letters) before the long-distance dialed digits. This example
assumes that route 4 is used for SDN calls.
Figure 4 Dial Plan Entries for SDN
Configuring the Dial Plan for North American Long Distance
In the NBX system dial plan, if you are using the 4ESS protocol and you
want to make long-distance calls, you must remove from the dial string
any digits that are dialed by users to access the long-distance service. For
example, if users normally dial 9 and then 1 to obtain a long-distance dial
tone, and then dial a 10-digit number, the dial plan must remove the 9
and the 1 and present only the 10-digit number to the long-distance
carrier. Otherwise, the 4ESS protocol rejects the call.
/ Route Entry OperID Operation Value
/ ----- ----- ------ --------- -----
DestinationRouteOperation Create 4 1 1 prepend SDN