Multi-Tech Systems MT5600SMI-34 User Manual

Page 73

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Chapter 5 – AT Commands, S-Registers, and Result Codes

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

73

Command:

+PIG

PCM Upstream Ignore

Description:

Controls the selection of PCM upstream in the modem. The actual state of
PCM upstream is determined by the state of this command as well as the
state of a negotiated handshake with a V.92-compliant server in V.92
Mode.

Defined Values:

+PIG0

Enable PCM upstream negotiation.

+PIG1

Disable PCM upstream negotiation. (Default.)

Result Codes:

OK 0 or 1 in V.92 Mode (+MS=V.92)
ERROR

Report Commands:

+PIG?

Reports Selected Value(s).
Response: +PIG: <value>
Example: +PIG: 1 For the default setting.

+PIG=?

Reports Supported Range of Parameter Values.
Response: +PIG: (<value> range)
Example: +PCW: (0,1)

Command:

+PMHF

V.92 Modem-on-Hold Hook Flash

Description:

Causes the modem to initiate the flash hook sequence when in the
modem-on- hold procedure. This enables switching to the second call
(incoming or outgoing).
This command applies only to V.92 modem-on-hold. There are no
parameters associated with this command.

Result Code:

OK

When the modem completes the flash hook sequence.

ERROR

If this command is initiated and the modem is not on hold.

Command:

+PQC

V.92 Phase 1 and Phase 2 Control

Description:

Controls the global enabling or disabling of the V.92 shortened Phase 1
and Phase 2 startup procedures. This command is used in conjunction with
the +PSS command.

Defined Values:

+PQC0

Enable Short Phase 1 and Short Phase 2. (Default.)

+PQC1

Enable Short Phase 1 only.

+PQC2 Not

supported.

+PQC3

Disable Short Phase 1 and Short Phase 2.

Result Codes:

OK 0, 1, or 3 in V.92 Mode (+MS=V.92)
ERROR

Report Commands:

+PQC?

Reports Selected Values.
Response: +PQC: <value>
Example: +PQC: 0

+PQC=?

Reports Supported Range of Parameter Values.
Response: +PQC: (<value> range)
Example: +PQC: (0,1,3)

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