13.1.12 Privacy ReleaseDescriptionBy default, all conversations which take place on CO lines, extension lines and doorphone lines are protectedfrom others interrupting the conversation (Automatic Privacy).Privacy Release allows a proprietary telephone (PT) or portable station (PS) user to suspend Automatic Privacyfor an existing CO line call on the S-CO button in order to establish a three-party call.System programming is required to enable or disable this feature.Conditions• S-CO ButtonAny flexible button can be customized as the S-CO button.• Privacy Release TimePrivacy is released for five seconds to allow the conversation to be joined.• This feature overrides Data Line Security (® 4.1.1 Data Line Security) and Executive Busy Override Deny(® 5.1.3 Executive Busy Override).PC Programming Manual References4.17 [2-9] System Options—Option 1— PT Operation—Privacy Release by SCO key6.5 [4-1-4] Wired Extension—Flexible Button— Type6.13 [4-2-3] Portable Station—Flexible Button— Type6.17 [4-3] DSS Console— TypeFeature Manual References6.1.3 Flexible ButtonsOperating Manual References1.3.15 Conference13.1.13 PRIVATE NETWORK FEATURESDescriptionA TIE line is a privately leased communication line between two or more PBXs, which provides cost effectivecommunications between company members at different locations. The TIE lines can be used to call throughthe PBX to reach another switching system (PBX or telephone company). By using TIE lines, the PBX cansupport not only communications with the public network but with other company members in the privatenetwork where the PBX is included.InterfaceThe following interfaces can be used to establish a private network:Interface Network TypeT1 (TIE [E & M]) Digital (64 kbps ´ 24 channels)PRI (QSIG) Digital (ISDN 23B+D)Document Version 2008-11 Feature Manual 22113.1.13 PRIVATE NETWORK FEATURES