Private networking using PRI SL-1 / 133N0130943 02 Modular ICS 7.1 Installer GuideCalls originating in the private networkReceived Destination DescriptionNode B Node B DN is internal, therefore no trunk routing isrequired.Incoming interface: IntercomDN type: LocalDestination: LocalNode A OttawaPSTNUser in Node A dials the private network accesscode for Node C, followed by an Ottawa publicnumber.Incoming interface: IntercomDN type: publicDestination: Remote PSTNNode C receives the call and identifies it as beingfor the public network. Node C routes the call overthe local public network.Incoming interface: PrivateDN type: PublicDestination: Local PSTNNode B CalgaryPSTNUser on Node B dials a public DN.Node B recognizes it as being the responsibilityof Node A and uses private trunk to route the callto A.Incoming interface: IntercomDestination: Remote nodeNode A receives the call and identifies it as beingfor the public network. Node A routes the call overthe local public network.Incoming interface: PrivateDestination: Remote PSTN
