ISDN Data and Telephony Protocol Engine (inc. X.25)
CMX228
1.5.4 POTS Configuration
1.5.4.1 Configuration and Control via DTMF Keypad
Configuration can be carried out at any time by causing the POTS port to go off-hook and then
immediately entering a configuration sequence of DTMF tones. The sequence signalled to the
CMX228 will determine the configuration to be performed, as shown in the following table.
Configuration
Sequence
Name
Description
Default
Test watchdog
Puts the CMX228 into a permanent
loop, not updating the external
watchdog counter, so after 2s it should
reset.
S02S#
n/a
Disable CLI delivery on
port
Inhibits CLI delivery on the analogue
POTS port
n/a
S81S#
Use V23 FSK for CLI
delivery
Configures modem standard to be used
for CLI delivery.
S81S1n#
n = alert mode
0 = FSK follows ring burst as per
ETS 300 659-1 para. 6.1.1
1 = FSK follows dual tone alert as per
ETS300 659-1 para. 6.1.2.a
Disabled
2 = FSK follows ringing pulse alert as
per ETSI 300 659-1 para. 6.1.2.b
3 = FSK follows line reversal and tone
alert as per ETSI 300 659-1
para. 6.1.2.c and BT SIN227.
Configures modem standard to be used
for CLI delivery.
FSK follows ring burst as per Bellcore
GR-30-CORE and SR-TSV-002476
Clears any saved digits
Use Bell 202 FSK for
CLI delivery
S81S2#
Disabled
n/a
Clear MSN
S90S#
Save Multiple Subscriber n = MSN (up to 23 digits)
Number (MSN)
S90Sn#
Clear
n/a
Clear country code
Country code is set to UK by default
S93S#
Change country code
n = country code
0 = UK
S93Sn#
UK
1 = Belgium
2 = Rest of Europe
Incoming calls on any channel are
accepted (provided other parameters
are valid eg MSN).
Clear channel mapping
S94S#
n/a
Enable channel mapping Where n = 1 or 2 for the appropriate
channel.
No channel
map
S94Sn#
ã 1999 Consumer Microcircuits Limited
ã 1999 Chiron Technology Limited
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CMLMICRO [ CML MICROCIRCUITS ]
