Chapter 9: Messages
Messages are ASCII character strings transmitted by the T-311 to the computer for the purpose of
providing information about T-311 operation. Messages may be formatted for display on a computer or
printer, or for reading by an applications program running on the computer.
Message Format
T-311 response messages are listed in Table 6.
The T-311 will return either a limited set of messages based on the standard AT message set or a
complete set of T-311 messages. The latter supports capabilities in the T-311, such as extended call
progress monitoring and security checking, that are not present in modems. For both message sets,
either digit-code-only messages (which serve the needs of applications programs), or
digit-code-plus-English-word messages, may be specified. These options are determined by the set-
ting of the V28 command, as follows:
V or V0
AT messages, digit code only
V1
AT messages, words
V2
T-311 messages, digit code only (two digits)
V3
T-311 messages, words
Table 6 T-311 Response Messages
Digit
Code
Word
Code
X Commands
Enabled
Description
Standard “AT” Commands
0
OK
0,1,2,3,4
Non-dial command successful
2
Ring
0,1,2,3,4
Incoming ring
4
Error
0,1,2,3,4
Error in command line
6
No dial tone
2,4
No dial tone or second dial tone detected
7
Busy
3,4
Busy signal detected
8
No answer
3,4
No answer
9
Not used
Command or S register not used in T-311
T-311 COMMANDS
System Messages
00
OK
All
Non-dial command successful
01
Status MD=...
All
System parameter status report
04
Error
All
Command error
05
Copyright notice...
All
T311 TAU 2.01 Copyright 1991-94 Teltone Corp.
09
Not used
All
Specified AT command or S register not supported
Call Answering Messages
10
Ring
All
Incoming ring received
11
Ring Lost
All
Incoming ring lost
12
Answered
All
Line answered
16
Pass
All
Password was accepted
17
Fail
All
Password was not accepted
18
No ringing detected
All
Specified AT command or S register not supported
Call Falling Messages
20
Dial Tone
X2,X4,X5
Found dial tone
21
Busy
X3,X4,X5
Found busy signal
22
Ringback
X5
Found ringback tone
23
RB Lost
X5
Ringback tone ceased
24
Reorder
X3, X5
Found reorder tone
25
Voice
X6
Voice detected
26
SIT
X7
Special Information Tones detected
29
T-311 Connect
X8
Detected T-311 answer tone
T-311
Page 38
Содержание T-311
Страница 1: ...Telephone Access Unit T 311 Product Manual 40 400 00045 Rev B ...
Страница 8: ...This page intentionally left blank T 311 Page vi ...
Страница 10: ...T 311 Page 2 Figure 1 T 311 Telephone Access Unit ...
Страница 17: ...Reference Manual Chapter 4 Dialing Instructions 40 400 00045 Rev B Page 9 Figure 3 System Connections ...
Страница 20: ...T 311 Page 12 Figure 5 Universal Mounting Bracket Optional Figure 6 Universal Mounting Shelf Optional ...
Страница 58: ...T 311 Page 50 Figure 7 T 311 Block Diagram ...