Avaya VTCPD Features (Software Release 2.1 on MPS 2.1) Manuale Utente Scaricare il pdf (Pagina 54)

VTCPD Features User Manual

Page 54 P0602483 Ver: 03.41

VTCPD Features User Manual

ISSUE-SEND-RECEIVE (ISR)

The ISSUE-SEND-RECEIVE model assumes the ideal situation, that all host data is

solicited or that the application knows (or assigns) the Message ID field.

This may be not the case for host driven applications when the host assigns Message

ID. In these cases, the host may need to execute on any available phone line so the

ISSUE-RECEIVE-SEND model has to be used.

A typical application ISSUE-SEND-RECEIVE scenario includes:

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 113 114

Release 6.0 1
Table of contents 3
Chapter 4 — VTCPD Messages 45 4
Chapter 7 — Index 111 5
Intended Audience 8
How to Use This Manual 8
Organization of This Manual 9
VTCPD Features User Manual 10
Trademark Conventions 11
Avaya VTCPD Over 13
Host Communications Overview 14
Avaya VTCPD Overview 15
MPS Software Architecture 16
Avaya VTCPD Features 18
Application-Defined Mode 20
UDP Mode 20
Avaya VTCPD Con 21
Configuration 22
The services File 22
Avaya VTCPD Daemon Names 22
Avaya VTCPD Port Assignments 22
P0602483 Ver: 03.41 Page 23 23
Variable Description 23
Options Overview 24
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Connection Options 26
Host Connection Options 26
#: [port] 27
Single Host Connection 28
Multiple Hosts Connections 28
One Connection Per Line 28
Multiple Avaya VTCPD Daemons 28
Channel Number 31
Attaching to VMST 34
Application-Host Options 36
Monitoring Host Connections 38
Backup LAN 38
Time-Outs 39
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P0602483 Ver: 03.41 Page 43 43
VTCPD Messages 45
Message Format 46
Message Identification (ID) 50
Message Routing 53
ISSUE-SEND-RECEIVE (ISR) 54
Reserving a Slot 57
Queuing Requests 57
Clearing the Connection 58
Changing Data Length 59
Replies Routing 60
Unidentified Host Data 62
Administrative Line 64
ISSUE-RECEIVE-SEND (IRS) 64
Registering the ID 64
Inverted Mode 64
Application Connection Choice 66
Choosing the Daemon 67
VTCPD Application 71
Programming 71
Communicating With the Host 72
VTCPD Application Programming 73
Soliciting Host Data 73
Host Driven Applications 76
Sending Messages 84
Variable Length Messages 86
Receiving Messages 87
Receiving Message Headers 88
Specifying Which VTCPD 91
Freeing the Host Connection 95
VTCPD Message Timing 96
Handling Resource Timeouts 97
VTCPD Debugging 101
Debugging 102
Host Simulation 103
Fault Tolerance 104
VTCPD Troubleshooting 107
Typical Problems 107
Questions and Answers 109

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