Appendix A. Dial Plan Interface ConfigurationA-2 T3 Module User Manual 61200223L1-1T3 Module (Network Termination/RBS)When you are working in the Network Termination section of the Dial Plan menu,Slot is defined as a T3-1 or T3-2 Module, and Sig is set to RBS, the following inter-face configuration options are available:First DS0Write security: 2; Read security: 5Defines to the ATLAS 800 the DS0s used for this end point. These are the DS0swhich the ATLAS 800 uses to send and receive calls to and from the network(PSTN). The outgoing calls which are allowed or restricted over these DS0sare set by the Outgoing Call Accept and Reject Numbers discussed earlier.Number of DS0sWrite security: 3; Read security: 5Specifies the number of DS0s already defined for this end point. This field isread-only.DS0s AvailableRead security: 5Indicates which DS0s of the T1 have been defined in this switched end point(indicated by "!"), in another switched end point (indicated by "s"), or in aDedicated Map (indicated by "n"). The following symbols may display in thisfield:Trunk Type (Voice/SW56)Write security:3; Read security:5Use this field if the incoming service on this trunk is Switched 56 digitalinstead of standard voice.Signaling MethodWrite security: 3; Read security: 5Defines to the ATLAS 800 the type of signaling to be used across this trunk.The signaling selected needs to match the signaling being provided by thenetwork (PSTN). The following choices are available:• E&M Immediate• E&M Wink• Loop Start• Ground Startdigits0-9This DS0 is available. The digit that displays in this field representsthe last digit of the DS0 number.* This port is requesting this DS0 for this connection, but the DS0 isnot yet activated.! This DS0 is used by this end point.s This DS0 is used elsewhere in the switched dial plan.S This DS0 is in the switched dial plan and conflicts with this endpoint.n This DS0 is used in one or more dedicated maps.N This DS0 is in one or more dedicated maps and conflicts with thisend point.