Multi-Tech Systems MT5600SMI-P32 ユーザーズマニュアル
Chapter 5 – AT Commands, S-Registers, and Result Codes
Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide
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V.8/V.8bis Commands
Command:
+A8E
V.8 and V.8bis Operation Controls
Description:
This command is defined for two conditions: as a parameter while the
modem is on-hook, and as an action command while the modem is off-
hook. If enabled, V.8 negotiation does not preclude simultaneous
implementation of other negotiation means (e.g., V.8bis, V.18, V.32bis
Annex A).
This command is a compound parameter if issued while the modem is on-
hook, used to precondition V.8 and V.8bis originating and answering
operation. It is issued by the DTE before the Dial (D) or Answer (A)
command, regardless of the state of the +FCLASS parameter.
This command is an action command if issued while the modem is off-
hook, to (re)start V.8 or V.8bis negotiation. For example, if initial V.8
negotiation failed, but subsequent T.30 negotiation indicated V.8 capability,
this command may be used to initiate V.8 negotiation.
modem is on-hook, and as an action command while the modem is off-
hook. If enabled, V.8 negotiation does not preclude simultaneous
implementation of other negotiation means (e.g., V.8bis, V.18, V.32bis
Annex A).
This command is a compound parameter if issued while the modem is on-
hook, used to precondition V.8 and V.8bis originating and answering
operation. It is issued by the DTE before the Dial (D) or Answer (A)
command, regardless of the state of the +FCLASS parameter.
This command is an action command if issued while the modem is off-
hook, to (re)start V.8 or V.8bis negotiation. For example, if initial V.8
negotiation failed, but subsequent T.30 negotiation indicated V.8 capability,
this command may be used to initiate V.8 negotiation.
Defined Values:
<v8o> Decimal number which enables/disables issuance of +A8x
indications during modem-controlled V.8 origination negotiation.
indications during modem-controlled V.8 origination negotiation.
1
Enable DCE-controlled V.8 origination negotiation without
+A8x indications. (Default.)
+A8x indications. (Default.)
6
Enable DCE-controlled V.8 origination negotiation with +A8x
indications.
indications.
<v8a>= Decimal number which enables/disables issuance of +A8x
indications during modem-controlled V.8 answer negotiation.
indications during modem-controlled V.8 answer negotiation.
1
Enable DCE-controlled V.8 answer negotiation without +A8x
indications. (Default.)
indications. (Default.)
5
Enable DCE-controlled V.8 answer negotiation with +A8x
indications.
indications.
<v8cf>= Set the V.8 CI signal call function to the hexadecimal octet XY.
00 (Default.)
21
C1
21
C1
<v8b>= Decimal number which enables/disables V.8bis negotiation.
0 Disable
V.8bis
negotiation.
1
Enable V.8bis negotiation. (Default.)
<cfrange>= “<string of values>“. Applicable only for <v8a>=5.
Not supported.
< protrange >= “<string of values>“. Applicable only for <v8a>=5.
Not supported.
Default values:
1,1,00,1,0,0
The ATD and ATA commands behave as specified in V.250, and +A8n
indications are not generated by the modem.
For subparameter values <v8o>=6 and <v8a>=5, the +A8I indications are
issued during the course of the V.8 session to notify the DTE when the
relevant V.8 signals are received.
The ATD and ATA commands behave as specified in V.250, and +A8n
indications are not generated by the modem.
For subparameter values <v8o>=6 and <v8a>=5, the +A8I indications are
issued during the course of the V.8 session to notify the DTE when the
relevant V.8 signals are received.
Report Commands:
+A8E? Reports Current or Selected Values.
Response: +A8E:
<v8o>,<v8a>,<v8cf>[,<v8b>][,<cfrange>][,<protrange>]
Example: +A8E: 1,1,00,1,0,0 For the defaults
+A8E=? Reports Supported Range of Parameter Values.
Response: +A8E: (<v8o> range),(<v8a> range),(v8cf in octets),
(<v8b> range),(<cfrange>),(<protrange>)
Example: +A8E: (1,6),(1,5),(0,21,C1),(0,1),(0),(0)