GTE Omni Si Database Technical Practices Issue 1 Manual

SVR 5210TL-130500-1001
When an Analog Featurephone goes off-hook, a digital
message is sent to the system as a request for service message.
Analog Featurephone station ringing initiated by the system
sends the appropriate message to the Analog Featurephone.
This directs the type of alerting cadence that the Analog
Featurephone reproduces.
When dialing, the Analog Featurephone user hears the DTMF
tones. The digital information is sent to the system via the data
link and the system’s DTMF receivers. These...

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l Interfaces with the system via universal slots. For voice only,
the VCIP FB-17235 provides the control link and voice
channel interface between the system and digital phone (one
tip and ring pair required). The 
DVCIP FB-17236, which is
used for voice/data applications, circuit switches data via 
CD-100. The VPLC2 FB-17246-A, which is used for voice/data,
switches voice and data via PD-200.
0 Powered by either a 24 VAC transformer or -48 VDC
l System can support up to 127 Digital...

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-Data button provides status indicator. Top LED is link light.
Bottom LED is call light and indicates incoming calls.
-Supports simultaneous voice and data calls.
-Configured as single-line or multi-line sets.
-Equipped with internal APM.
-Interfaces with the system via universal slots. TheVPLCVPLC2 provides the voice/data mini-packet link
interface between system and Digital Featurephone.
l Powered by either a 24 VAC transformer or -48 VDC supplied
by an external source.
l...

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NOTE: Three types of mini-packets are transmitted between the
DFP and SID (Software Identification).A single twisted pair
multiplexes these mini-packets :* Voice (transparent) mini-packets. These mini-packets carry
only PCM (Pulse Code Modulation) voice samples between the
CODEC in the telephone and the PCM bus in the switch.
l Voice control (non-transparent) mini-packets. These 
mini-packets carry instrument control messages between the ICP
(Instrument Control Processing) software in the...

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Table 17.2Types of Digital FeaturephonesHE-867832-WT14
16-character displayVPLC2(packet switched
packet switched
SVR 5210Figure 17.4 shows the Digital Featurephone and the 
VCIP (Voice
Control Interface Processor) card, the 
DVCIP (Data Voice Control
Interface Processor) card, and the VPLC2 (Voice Packet Line
Card 2) card. The Digital Featurephone contains a CTU
(Communications Terminal Unit ) microprocessor chip, a MPRT
(Mini-packet Receiver/Transmitter) chip, a VPAD (Voice/Packet...

PHONEVPLCZPCM
LPB
BUSPEC
BUS
“CIPPCM
“‘I /BUTTONS
LED’s
DATA
OPTION
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DVCIPPCM
HUS
PLC, HUSI II
gure 17.4I
Block Diagram of Digital Featurephone with VCIP or DVCIP Card
The CTU has a 6502 microprocessor with 2 kilobytes of ROM
(Read-Only Memory), 64 kilobytes of RAM (Random Access
Memory), and DTMF tone generation circuitry based on 
ROM-stored patterns. The CTU controls all telephone functions and
packet manager functions (with data option card equipped).
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The VCIP card receives mini-packets from the eight digital
phones connected to it by twisted 
paris. The VCIP card, by its
eight MPRT chips, segregates the mini-packets into transparent
and nontransparent mini-packets. Nontransparent 
mini-packets are presented to the 6502 microprocessor for
processing. Transparent mini-packets are broken down into
eight 64 Kbps PCM streams that are multiplexed into the
allocated time slots on the PCM bus. Multiplexing each PCM
stream to the correct PCM...

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The voice-control software locally processes the voice-control
mini-packets. This software is essentially identical to that used
in the VCIP card. When messages associated with a voice call
to or from the phone are processed by the control software, the
interface messages to the 
OMNI SI switch are tagged with the
even channel identification of the odd-even channel pair.
Conversely, when messages associated with a data call to or
from the phone are processed by the control...

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Figure 17.5 Agent InstrumentThe Agent Instrument has headset or handset jacks located at
the rear and on one side of the console. Supervisory
headsetfhandset monitoring use the rear jacks, while agent’s
headset or handset use the side jacks. The agent’s headset or
handset must be plugged in for the Agent Instrument to operate in
the on-line mode. When the user removes the headset or
handset, the Agent Instrument defaults to the test diagnostic
mode.
A 32-character...