SIP User's Manual 402 Document #: LTRT-12801
MP-500 MSBG
Parameter Description
Notes:
 The parameter can include up to 25 indices (i.e., up to 25 different
metering rules can be defined).
 This parameter is applicable only to FXS interfaces.
 To associate a charge code to an outgoing Tel-to-IP call, use the
'Tel to IP Routing' table.
 To configure the Charge Codes table using the Web interface, refer
to ''Configuring the Charge Codes Table'' on page 172.
 For an explanation on configuration using ini file table parameters,
refer to ''Format of ini File Table Parameters'' on page 273.
6.13 Telephone Keypad Sequence Parameters
The telephony keypad sequence parameters are described in the table below.
Table 6-48: Keypad Sequence Parameters
Parameter Description
Prefix for External Line
[Prefix2ExtLine]
Defines a string prefix (e.g., '9' dialed for an external line) that
when dialed, the device plays a secondary dial tone (i.e.,
stutter tone) to the FXS line, and then starts collecting the
subsequently dialed digits from the FXS line.
The valid range is a one-character string. The default is an
empty string.
Notes:
 You can enable the device to add this string as the prefix to
the collected (and sent) digits, using the parameter
AddPrefix2ExtLine.
 This parameter is applicable only to FXS interfaces.
[AddPrefix2ExtLine]
Determines whether the prefix string for accessing an external
line (defined by the parameter Prefix2ExtLine) is added to the
dialed number as the prefix, and together sent to the IP
destination (Tel-to-IP calls).
 [0] = Disable (default)
 [1] = Enable
For example, if this parameter is enabled and the prefix string
for the external line is defined as "9" (using the parameter
Prefix2ExtLine), and the FXS user wants to make a call to
destination "123", the device collects and sends all the dialed
digits, including the prefix string, as "9123" to the IP destination
number.
Note: This parameter is applicable only to FXS interfaces.
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