Instruction manual
System Features
Memory Protection
82 Strata DK General Description 6/00
Memory Protection
If the power fails, the Strata DK has an internal battery backup that protects data and the
customer’s programmed configuration. This information will be maintained within a powerless
system for at least six years.
Message Waiting
Any station and most voice mail devices can leave a message waiting indication (light) on a
designated message waiting light of a digital, electronic, or standard telephone station.
Message waiting lights can be activated when a voice mail message has been left, or they can be
turned on by a calling station. The station user can retrieve messages by pressing the button next to
the message waiting light.
♦ DK14 and DK40i – QSTU2 and KSTU2 PCBs do not support standard telephone MW lamps.
♦ DK40i, DK424i – an RSTU2 PCB must be connected to a standard telephone with a MW
lamp to enable this feature. These DK systems provide Messages Waiting to standard
telephones with a message waiting lamp. The user can enter an access code to retrieve the
messages. A standard station can store up to four indications.
Multiple Directory Numbers
A [DN], sometimes called an “extension number,” is the number someone must call to reach a
destination within the system. To maximize call coverage flexibility, station [DNs] can appear on
multiple telephones. Also, individual telephones can have multiple [DNs] (see Figure 17).
The system provides three types of [DNs]: Primary, Secondary and Phantom. All [DNs] can be
used to originate and answer calls. If you press a [DN] while on a call, it releases the existing call
and provides dial tone to make another call.
♦ DK14 supports a maximum of 10 [PDNs] and 10 [PhDNs]
♦ DK40i supports a maximum of 28 [PDNs] and 28 [PhDNs]
♦ DK424i each support a maximum of 336 [PDNs] and 336 [PhDNs] (See Table 38 for
maximum capacities for various common control units)
Primary Directory Number [PDN]
Each station in the Strata DK has a unique [PDN]. This [PDN] can appear on multiple buttons (up
to four) of the primary station.
Secondary Directory Number [SDN]
When the [PDN] of a station appears on another station, it becomes an [SDN]. Any [PDN] can
appear as an [SDN] on all other Toshiba telephones in the system. A [PDN]/[SDN] can ring on up
to 120 telephones in the system. Each telephone can be assigned up to four of the same [SDN]. The
maximum number of [PDNs] plus [SDNs] on each telephone is 16.










