DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-981S-SYN-PT (Speech Synthesis Port)
3
S-SYN-PT (Speech Synthesis Port)
The TN725 Speech Synthesis circuit pack p rovides four independ ent Speech
Synthesis Ports which can be connec ted to any of the voice time slots on the
TDM Bus. Each Speech Synthesis Port consists of a speech synthesizer device
(SSD) and is managed by a c ustom-coded prog rammable speech synthes izer
(PSS) co ntroll er. The PSS cont roller is, in turn, contr olled by th e on-b oard
microprocessor via a c ommand interface spec ifically designed for this
app licat ion. Th e PSS con trolle r’s ma in func tion is the o rder ly tran sfer o f enco ded
speech from the speec h vocabulary read-only memory (ROM) to the SSDs. The
SSDs decode it and prod uce 64 kb/s 5-255 PCM (Pulse Code Modulation )
speech. The encoded speech is stored in up to 512K bytes of on-board
read-only memory (ROM). In addition, eac h Speech Synthesis Port has an
associated dual-tone m ultifrequency (DTMF) receiver to receive touch-tone d igits
from a station set connected to the p ort via a voice time slot. The station set may
be connected to the Speech Synthesis Port through either a line or trunk circ uit.
When there is an incoming call to a p ort, the "listen" network time slot is
connected to the DTMF receiver input and the "talk" network time slot is
connected to the SSD output. This enab les the Speech Synthesis Port to support
speech synthesis features or touch- tone input with voice response features.
Some of the features that use the Speech Synthesis Port’s capab ilities include
Leave Word Calling, Automatic Circuit As surance, Automatic Wakeup
(hotel-motel), and do Not Disturb (hotel-motel).
The Speech Synthesis circuit pac k should not be confused with the
Announcement circuit p ack as different voice features are sup ported by each
circuit pack.
MO Name (in
Alarm Log)
Alarm
Level Initial Command to Run1
1. Where P is the port network number (1 ); C is the carrier desig nation (for example, A, B, or
C); and SS is the address of the slot in the carrier where the circuit pack is located (for
example, 01, 02, ..., etc.).
Full Name of MO
S-SYN-PT MAJOR test p ort PCSSp p sh Speec h Synthe sis Port
S-SYN-PT MINOR te st port PCSSpp l Speec h Synthe sis Port
S-SYN-PT WARNING test p ort PCSSp p sh Speec h Synthe sis Port