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signal.
0 The modem timed out waiting for an answering signal.
1 V.8 ANSam signal (2100 Hz with amplitude modulation) detected.
2 V.25 answer tone (2100 Hz) detected.
3 V.25 answer tone with phase reversals detected. (Note)
4 sigA signal: V.21 Ch2 with flags (e.g., T.30 control preamble) detected.
5 sigA signal: V.22bis USB1 signal detected.
6 sigA signal: V.32bis AC signal detected.
7 sigA signal: V.34 ToneA signal detected.
Example
+A8A:1 For V.8 ANSam signal (2100 Hz with amplitude modulation) detected.
3.2.7.7 +A8J: - V.8 Negotiation Complete
This indication is issued by either modem when the negotiation is complete and CJ is
sent or detected. An answering modem will issue this on detection of CJ from the remote
terminal. A calling modem will send a CJ signal to the remote terminal at the same time
as a +A8J indication. +A8J:1 indicates CJ; +A8J:0 indicates that the modem timed out
waiting for a CJ signal.
Indication Syntax
+A8J:<value><CR>
Defined Values
<value> Decimal number corresponding to the selected option.
0 The modem timed out waiting for a CJ signal.
1 CJ signal sent or detected.
Example
+A8J:1 For CJ sent to a remote terminal.
3.2.7.8 +A8M: - V.8 Menu Report
This indication is issued by either modem, during V.8 negotiation, to indicate the
contents of a valid received CM or JM signal. A +A8M:0 indicates that the modem timed
out waiting for a CM or JM signal.
Report Syntax
+A8M:< hex_string>
Defined Values
< hex_string> CM or JM hexadecimal coded string. A +A8M:0 indicates that the modem
timed out waiting for a
CM or JM signal.
Example
A8M:XXX YYY
3.2.7.9 +A8R: - V.8bis Signal and Message Reporting
If enabled by +A8E=,,,[<v8b>=2] command, the modem monitors for V.8 bis signals and
messages, and uses the +A8R:
intermediate result code response to report that signal. Two concatenated V.8 bis
messages are reported with two consecutive <message> indications.
Report Syntax
+A8R:<signal>[,[<1st message>]][,<2nd message>]<CR>
Defined Values
<signal> The V.8 bis signal, if detected, is indicated using a <signal> value (see Table
3-1). Values of 4 and 8 are not reported, i.e., the modem is not expected to discern the
power level of received CRe
and MRd signals. If a V.8 bis message is detected without a preceding V.8 bis signal,
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