PSB4860 Datasheet, PDF (64/250 Pages) Siemens Semiconductor Group – Digital Answering Machine with Full Duplex Speakerphone SAM EC

PSB 4860
Functional Description
be created only once. If the directories already exist, the memory has just to be activated
after a reset. The file descriptors are not changed in this case.
All commands that access the other fields or involve a write access must not be used in
voice prompt memory space.
2.2.1
File Definition and Access
A file is a linear sequence of units and can be accessed in two modes: binary and audio.
In binary mode, a unit is a word. In audio mode, a unit is a variable number of words
representing 30 ms of uncompressed speech. A file can contain at most 65535 units.
Figure 37 shows an audio file containing 100 audio units. The length of the message is
therefore 3 s.
3s
Hi Jack, this is Tom. Please call me back tomorrow.
0
99
Figure 37 Audio File Organization - Example
Figure 38 shows a binary file of 11 words containing a phonebook (with only two entries).
TO M 55 54 30 J AC K 55 58 11
544F 4D20 3535 3534 3330 004A 4143 4B20 5555 5538 3131
01
10
Figure 38 Binary File Organization - Example
There is one special file in the voice prompt directory (referenced by file number 255)
which is intended for a large number of phrases and hence has a different
organization.This file exists only in the directory for the voice prompt memory. It consists
of up to 2048 phrases of arbitrary individual length. The actual number of units within an
individual phrase is determined during creation and cannot be altered afterwards.
Phrases can be combined in any sequence without intermediate noise or gaps.
Semiconductor Group
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