1.25.5 Wireless XDP Parallel ModeDescriptionA PS can be used in parallel with a wired telephone (PT/SLT). In this case, the wired telephone is the maintelephone and the PS is the sub telephone. When Wireless XDP Parallel Mode is enabled, the two telephonesshare one extension number (main telephone’s extension number).Cell StationPBXWireless XDPParallel ModeExtn. 102PT/SLT PSConditions• If one of the telephones goes off-hook while the other telephone is on a call, the call is switched to thetelephone going off-hook. However, the call is not switched in one of the following conditions:a. During a Conference call (® 1.14.1 Conference Features).b. While Live Call Screening (LCS) or Two-way Record is activated (® 1.24.3 Voice Mail DPT (Digital)Integration).c. While receiving OHCA (® 1.8.4.3 Off-hook Call Announcement (OHCA)).d. While being monitored by another extension (® 1.8.3 Call Monitor).e. During Consultation Hold.f. During a broadcasting call (® 1.16.1 Broadcasting).• Wireless XDP Parallel Mode can only be set from a PS. The wired telephone can accept or deny this featurethrough COS programming. Once this feature is set, the setting at the wired telephone cannot be changedunless a PS changes the setting.• The following features are not available for extensions in Wireless XDP Parallel Mode while the PS is ona call (however, they are available for extensions in Wireless XDP Parallel Mode while the wired telephoneis on a call):– Executive Busy Override (® 1.8.2 Executive Busy Override)– Whisper OHCA (® 1.8.4.4 Whisper OHCA)– CCBS (® 1.21.1.10 Completion of Calls to Busy Subscriber (CCBS))• Most of the extension data (e.g., extension number, extension name) of the wired telephone is used for itsPS as well. However, the PS has its own extension data for the following:– Ring Tone Pattern Table Selection (® 1.1.3.2 Ring Tone Pattern Selection)– Preferred Line Assignment—Incoming (® 1.4.1.2 Line Preference—Incoming)– Preferred Line Assignment—Outgoing (® 1.5.5.2 Line Preference—Outgoing)– Hot Line Setting (® 1.6.1.7 Hot Line)Feature Guide 2791.25.5 Wireless XDP Parallel Mode