Comtrol AT Command Set Rev A - Manual (Page 98)

AT Commands Reference Manual
Conexant 100722B
3-72
3.2.7 V.8/V.8bis Commands
+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>,<v8cf>[,<v8b>][,<cfrange>][,<protrange>]
Defined Values
<v8o> Decimal number which enables/disables issuance of +A8x
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 +A8x
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.
00 (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.