Telenetics 56 - Manual (Page 97)

AT Commands
Page 89
%C - Enable/Disable Data Compression
Enables or disables data compression negotiation. The modem can only perform data
compression on an error corrected link. The parameter value, if valid, is written to S41,
bits 0 and 1.
Syntax %C<value>
Defined Value
<value> Decimal number corresponding to the selected option.
0 Disables data compression. Resets S46 bit 1.
1 Enables MNP 5 data compression negotiation.
Resets S46 bit 1.
2 Enables V.42bis data compression. Sets S46 bit 1.
3 Enables both V.42bis and MNP 5 data
compression. Sets S46 bit 1. (Default.)
Result Codes
OK <value> = 0, 1, 2, or 3.
ERROR Otherwise.
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.8negotiation.
Syntax +A8E=<v8o>,<v8a>,<v8cf>[,<v8b>][,<cfrange>][,<protrange>]
Defined Value
<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 Decimal number which enables/disables issuance
of +A8x indications during modem-controlled V.8