Hayes Microcomputer Products RCV56HCF - Manual (Page 22)

RCV56HCF PCI/CardBus Modem Designer’s Guide
ROCKWELL PROPRIETARY INFORMATION 1129 2-4
software control modem operation. Most VoiceView commands use an extended syntax starting with the characters "-S",
which signifies the capability to switch between voice and data.
2.11 CALLER ID
Caller ID can be enabled/disabled using the +VCID command. When enabled, caller ID information (date, time, caller code,
and name) can be passed to the DTE in formatted or unformatted form. Inquiry support allows the current caller ID mode
and mode capabilities of the modem to be retrieved from the modem.
2.12 WORLD CLASS COUNTRY SUPPORT
The W-class models include functions which support modem operation in multiple countries. The following capabilities are
provided in addition to the data modem functions previously described. Country dependent parameters are included in the
.INF file for customization by the OEM.
2.12.1 Programmable Parameters
The following parameters are programmable:
•
Dial tone detection levels and frequency ranges.
•
DTMF dialing transmit output level, DTMF signal duration, and DTMF interdigit interval parameters.
•
Pulse dialing parameters such as make/break times, set/clear times, and dial codes.
•
Ring detection frequency range.
•
Blind dialing disable/enable.
•
The maximum, minimum, and default carrier transmit level values.
•
Calling tone, generated in accordance with V.25, may also be disabled.
•
Call progress frequency and tone cadence for busy, ringback, congested, dial tone 1, and dial tone 2.
•
Answer tone detection period.
•
On-hook/off-hook, make/break, and set/clear relay control parameters.
2.12.2 Blacklist Parameters
The modem can operate in accordance with requirements of individual countries to prevent misuse of the network by limiting
repeated calls to the same number when previous call attempts have failed. Call failure can be detected for reasons such as
no dial tone, number busy, no answer, no ringback detected, voice (rather than modem) detected, and key abort (dial
attempt aborted by user). Actions resulting from such failures can include specification of minimum inter-call delay, extended
delay between calls, and maximum numbers of retries before the number is permanently forbidden ("blacklisted"). Up to 20
such numbers may be tabulated. The blacklist parameters are programmable.
2.13 DIAGNOSTICS
2.13.1 Commanded Tests
Diagnostics are performed in response to &T commands per V.54.
Analog Loopback (&T1 Command). Data from the local DTE is sent to the modem, which loops the data back to the local
DTE.
Analog Loopback with Self Test (&T8 Command). An internally generated test pattern of alternating 1s and 0s (reversals)
is sent to the modem. An error detector within the modem checks for errors in the string of reversals.
Remote Digital Loopback (RDL) (&T6 Command). Data from the local DTE is sent to the remote modem which loops the
data back to the local DTE.
Remote Digital Loopback with Self Test (&T7 Command). An internally generated pattern is sent from the local modem
to the remote modem, which loops the data back to the local modem.
Local Digital Loopback (&T3 Command). When local digital loop is requested by the local DTE, two data paths are set up
in the local modem. Data from the local DTE is looped back to the local DTE (path 1) and data received from the remote
modem is looped back to the remote modem (path 2).
2.13.2 Power On Reset Tests
Upon power on, an MDP test is performed. If the MDP is not operational, an error indication is generated.
2.14 LOW POWER SLEEP MODE
When not being used, the MDP is placed in a low power state.