Call termination points for AAR and ARS calls with Facility Restriction Levels

Last Updated : Oct 30, 2012 |

A termination point for an AAR or an ARS call can be:

  • A tie trunk

    • A tie trunk termination point for an AAR and ARS call can include a common-control switching arrangement (CCSA) access trunk and an enhanced private switched communications services (EPSCS) access trunk.

    • A tie trunk termination point for an AAR and ARS call excludes a release-line trunk (RLT).

  • A Wide Area Telecommunications Services (WATS) trunk

  • A central office (CO) trunk

  • A foreign exchange (FX) trunk

  • An integrated services digital network-primary rate interface (ISDN-PRI) trunk

Each of these outgoing trunk groups has a COR that contains an FRL. However, for AAR and ARS calls, the system uses the FRL that you assigned to the route pattern of the trunk group.