Multi-Tech Systems MT5600SMI-34 User Manual

Page 109

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Chapter 7 – Voice Commands

Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide

109

Table 7-6. Events Detectable in the Voice Mode per V.253

Event Number

Event Description

Event Reporting

0

Caller Id Report

Message

1

DID Report

Message

2

Distinctive Ringing

Pattern

3

RING

Simple

4

DTMF Received

Simple

5

Receive Buffer Overrun

Simple

6

Facsimile Calling (e.g., 1100 Hz)

Simple

7

Data Calling (e.g., 1300 Hz)

Simple

8

Local Phone On/Off-hook

Simple

9

Presumed Hangup (SILENCE) Time-out

Simple

10

Presumed End of Message (QUIET) Time-out

Simple

11

SIT Signal

Simple, Message

12

Bong Tone

Simple

13

Loop Current Interruption

Simple

14

Loop Current Polarity Reversal

Simple

15

Call Waiting Beep/Interrupt

Simple

16

Distinctive Call Waiting

Simple

18

Ringing Tone

Simple

19

BUSY

Simple

20

DIAL TONE

Simple

21

Reorder/Fast Busy

Simple

22

V.21 Channel 2 7E flags

Simple

23

Transmit Buffer Underrun

Simple

24

Extension Phone On/Off-hook

Simple

25

Facsimile or Data Answer (e.g., 2100 Hz)

Simple

26

Data Answer (e.g., 2225 Hz)

Simple

27

Voice Detect

Simple

29

Stuttered Dial tone

Simple (note 1)

30

Invalid Voice Data Format

Simple

31

Lost Data Detected Event

Simple

32

Facsimile Answer

Simple

Legend:
This table lists events without any regard as to whether the DCE reporting of the event is

optional or mandatory, and without assigning a DCE reporting mechanism.

The first column lists the event number assignment for each event. The event number also
serves another purpose; each number is a bit position in a bit field. Event number 0 is the
most significant bit of the left most hex number in a hex representation (V.253 defines a
total of eight hex digits). The final bit in the bit field occupies the least significant bit position
of the right-most hex number. The bit representations of the event numbers are used in the
+VLS= command.
The third column lists whether a single character is enough to report the event, or if the
DCE must supply a more complicated report. The description Simple indicates a single
character response (<DLE> shielded), Message indicates a full text message (<DLE><X>
packet), and Pattern indicates a repeating Message.
Notes:
1. The use of complex event reporting for Stuttered Dial tone is for further study.

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