Instruction manual

FCC Compliance for Equal Access Page 1487 of 3156
Features and Services
GCR permits a configuration of allowing or denying all North American
Equal Access toll calls and all international Equal Access toll calls. This GCR
restriction is based on call type only, and does not take into account the dialed
Carrier Identification Code. SCR uses the New Flexible Code Restriction
(NFCR) feature to place a more selective restriction on Equal Access toll
calls, based on the dialed Carrier Identification Code (CIC). So, for example,
Equal Access toll calls for a carrier with a CIC of 434 could be denied, while
Equal Access toll calls for a carrier with a CIC of 225 could be allowed.
GCR is the simplest method to implement and requires no additional
memory. It is therefore recommended that GCR be used if there is no need to
restrict Equal Access toll calls based on carrier usage. SCR is more difficult
to set up and requires additional memory. Use this method only if there is a
strong need to restrict Equal Access toll calls based on carrier usage.
Since both methods can be active at the same time, the optimum solution in
some cases would be to implement a combination of GCR and SCR. If, for
example, a requirement exists to restrict all North American Equal Access toll
calls and only certain international Equal Access toll calls, based on carrier
usage, then GCR could be configured to handle the North American Equal
Access toll calls while SRC could be configured to handle the international
Equal Access toll calls.
Operating parameters
The same requirements for normal calls using the New Flexible Code
Restriction (NFCR) feature apply to calls made under the Selective Carrier
Restriction method, except that Equal Access operator calls (10XXX0) are
allowed to be completed while Equal Access international toll calls
(10XXX011) are denied.
This feature could require extra memory when operating under the Selective
Carrier Restriction method (as much as 15.5K words of protected data storage
when fully configured). Insufficient memory may limit the number of CIC
codes which may be restricted.
This feature only supports COT, FEX, WAT, DID, and TIE routes with
Standard Signaling.