Boca Pro16 Series - Dialing and Modifiers in V.25 bis

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BOCA PRO16 Reference Guide
Data Formats
Not all data formats are supported when V.25bis operation is selected.
Use only the types of parity shown in the following table:
Mode Parity
Async V.25bis Even parity
Sync BSC Odd parity
Sync HDLC Bit 7 always zero in the information field.
Commands issued with the wrong parity are ignored by your modem.
V.25bis Indications
V.25bis indications are similar to the response codes, sent when your
modem is operating in AT command mode. Six V.25bis indications are
supported by your modem:
Verbal Meaning
VAL Command accepted and executed
CNX Connection established
INC Incoming call detected
CFI AB Call failure, abort
CFI ET Call failure, engaged
INV Invalid command
These are the only indications supported by your modem. When
operating in asynchronous V.25bis mode, these indicators are suffixed
with Carriage Return and Line Feed characters and V.25bis indicators
will only be sent to your computer if DTR is raised.
Dialing
Your modem supports two methods of dialing in V.25bis mode; “ad-
dressed calling” (similar to using an ATD command) and “direct
calling” (similar to DTR dialing with the &M4 command). The CRN
command is used to initiate a telephone call. The most basic form of the
CRN command is:
CRN number
where the number is the telephone number you are dialing.
For example:
• Type: CRN 01234 <E>
Your modem will dial 01234
V.25bis Operations
V.25bis
Operations
pro16ref.pm6 6/14/96, 2:37 PM71