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Issue 5.0
Digital Trunk Clocking
The UNIVERGE SV8100 CD-CP00-US has a built-in clock source for all digital trunk
blades. Digital trunk blades are connected via an internal PLO (Phase Locked
Oscillator) to derive Primary Clock from the network in priority order. If priority is set
up incorrectly, or if two primary clocks are coming in, slips may occur causing
improper data synchronization. The PLO, equipped with the UNIVERGE SV8100
CD-CP00-US is the timing source for all digital trunk blades in the system. The PLO
synchronizes the system and clocks signals from another office. When the
UNIVERGE SV8100 is a clock receiver office, the PLO generates the clock signal
according to the source clock signals received from the source office in the network.
The source clock signals are extracted from digital trunk blades and are supplied to
the PLO.
Direct Inward Dialing (DID)
Direct Inward Dialing (DID) lets outside callers directly dial a system extension. DID
saves time for callers who know the extension number they want to reach. To place a
DID call, the outside caller dials the local exchange (NNX) and additional digits to ring
the telephone system extension. For example, DID number 926-5400 can directly dial
extension 400. The caller does not have to rely on attendant or secretary call
screening to complete the call.
In addition to direct dialing of system extensions, DID provides:
There are 20 DID Translation tables that can be divided between 2000 entries.
Direct Inward Line (DIL)
A Direct Inward Line (DIL) is a trunk that rings an extension, virtual extension or
Department Group directly. Since DILs only ring one extension or group (i.e., the DIL
destination), employees always know which calls are for them. For example, a
company operator can have a Direct Inward Line for International Sales Information.
When outside callers dial the DIL telephone number, the call rings the operator on the
International Sales line key. The DIL does not ring other extensions.
There are 200 available trunks, 64 Department Groups, 512 extensions and 256
Virtual Extensions.
2 - 24
Direct Inward Dialing requires DID service from Telco.
DID Dialed Number Translation
Flexible DID Service Compatibility
DID Intercept
DID Camp-On
UNIVERGE SV8100
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