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1.10 Conversation Features Feature Description CO-to-CO Line Call (except Unattended Conference Call) Duration If a call between two outside parties is established, the call duration can be restricted by the system timer selected for each CO line group (→ CO-to-CO Line Call Duration [473]). Both parties will hear an alarm tone 15 seconds before the timer expires at five-second intervals. If the timer expires, the line will be disconnected. This timer applies to CO line calls which are made via the PBX. If both calls are made by the extension (such as a CO line call made by an extension is transferred to an outside party), the shorter timer will apply to the call. Dialing Digit Restriction during Conversation While engaged on a received CO line call, the dialing of digits can be restricted. If the number of dialed digits exceeds the limitation, the line will be disconnected. Conditions • During an Unattended Conference Call, the Unattended Conference Recall time is applied. (→ 1.13.1.2 Conference) 1.10.9 Paralleled Telephone Description By connecting telephones in parallel, you can increase the number of telephones connected to the PBX without adding additional extension cards. Both wired and wireless telephones can be connected in parallel. Single line telephones (SLTs), analog proprietary telephones (APTs), and digital proprietary telephones (DPTs) can be connected to other telephones or connectors, allowing up to three telephones to be connected to the PBX through just one extension port. Additionally, portable stations (PSs) can be linked to other telephones wirelessly and used as "paired" extensions. The different type of parallel connections are described below. Features Descriptions Parallel Mode Allows an SLT to be connected to an APT or DPT which is connected to a Super Hybrid port of the PBX. When the two telephones are connected in parallel mode: • Both share one extension number (APT or DPT's extension number). • Either telephone can make or answer calls. • If one goes off-hook while the other is on a call, the call is switched to the telephone that goes offhook. Connections APT/DPT + SLT PBX DPT SLT Extn. 101 Extn. 101 APT SLT Extn. 102 Extn. 102 Feature Guide 101
