Command Reference Manual
3-50
Conexant
100722A
3.2.7 V.8/V.8bis Commands
3.2.7.1 +A8E - V.8 and V.8bis Operation Controls
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.
Syntax
+A8E=<v8o>,<v8a>,<v
8cf>[,<v8b>][,<cfrange>][,<protrange>]
Defined Values
<v8o> Decimal number which enables/disables issuance of +A8
x
indications during modem-controlled
V.8 origination negotiation.
1 Enable DCE-controlled V.8 origination negotiation without +A8x indications.
(Default.)
6 Enable DCE-controlled V.8 origination negotiation with +A8x indications.
<v8a>= Decimal number which enables/disables issuance of +A8
x
indications during modem-controlled
V.8 answer negotiation.
1 Enable DCE-controlled V.8 answer negotiation without +A8x indications. (Default.)
5 Enable DCE-controlled V.8 answer negotiation with +A8x indications.
<v8cf>= Set the V.8 CI signal call function to the hexadecimal octet XY.
0 (Default.)
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.
Reporting Current or Selected Values
Command: +A8E?
Response:
+A8E: <v8o>,<v8a>,<v8cf>[,<v8b>][,<cfrange>][,<protrange>]
Example: +A8E: 1,1,00,1,0,0 For the defaults
