Avaya VTCPD Features (Software Release 2.1 on MPS 2.1) Manual do Utilizador descarregar pdf (Página 86)

VTCPD Features User Manual

Page 86 P0602483 Ver: 03.41

VTCPD Features User Manual

Variable Length Messages

VTCPD can be configured to support either fixed length messages or variable length

messages (see Message Format on page 46.)

Based on the VTCPD configuration, a variable length message is either delimited by a

special character or specified by a length header that precedes the message (the length

header can be included in the total length of the message).

VTCPD is responsible for supplying the delimiter or the length header. The

application should only send data— the delimiter or length header is added by

VTCPD.

The application can also specify the length of the message that it sends to the host (see

Variable Length Messages on page 86.)

Applications can use the Resource block Length field to specify the length of the

message sent to the host (see Message Format on page 46.) The length of the message

must not be less than the length of the message ID plus the position of the message ID.

This feature can be used if, for example, the data changes dynamically but the

application stores it in the same data card.

The application cannot change the length of a message if VTCPD is configured for

fixed length messages (that is, vtcpd -f <len>).

If the application specifies the length of the message, VTCPD ignores the truncate

option, vtcpd -mt (see Message Format on page 46.)

Specify the length of

the data to send

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Avaya VTCPD Features (Software Release 2.1 on MPS 2.1) Manual do Utilizador Página 86