Version 7.0 987 Mediant 3000
User's Manual 58. Configuration Parameters Reference
Parameter Description
For each subsequently received ISDN Info Q.931 message, the device
sends the collected digits to the IP side in INFO messages.
Notes:
 When option [2] or [3] is configured, you can define the minimum
number of overlap digits to collect before sending the first SIP
message for routing the call, using the MinOverlapDigitsForRouting
parameter.
 When option [2] or [3] is configured, even if SIP 4xx responses are
received during this ISDN overlap receiving, the device does not
release the call.
 The MaxDigits parameter can be used to limit the length of the
collected number for ISDN overlap dialing (if Sending Complete is not
received).
 If a digit map pattern is defined (using the DigitMapping or
DialPlanIndex parameters), the device collects digits until a match is
found (e.g., for closed numbering schemes) or until a timer expires
(e.g., for open numbering schemes). If a match is found (or the timer
expires), the digit collection process is terminated even if Sending
Complete is not received.
 For enabling ISDN overlap dialing for IP-to-Tel calls, use the
ISDNTxOverlap parameter.
 The x in the ini file parameter name denotes the trunk number, where
0 is Trunk 1.
 For more information on ISDN overlap dialing, see ''ISDN Overlap
Dialing'' on page 451.
[ISDNRxOverlap]
Same as the description for parameter ISDNRxOverlap_x, but for all
trunks.
Mute DTMF In Overlap
[MuteDTMFInOverlap]
Enables the muting of in-band DTMF detection until the device receives
the complete destination number from the ISDN (for Tel-to-IP calls). In
other words, the device does not accept DTMF digits received in the
voice stream from the PSTN, but only accepts digits from ISDN Info
messages.
 [0] Don't Mute (default).
 [1] Mute DTMF in Overlap Dialing = The device ignores in-
digits received during ISDN overlap dialing (disables the DTMF in-
band detector).
Note: The parameter is applicable to ISDN Overlap mode only when
dialed numbers are sent using Q.931 Information messages.
[ConnectedNumberType]
Defines the Numbering Type of the ISDN Q.931 Connected Number IE
that the device sends in the Connect message to the ISDN (for Tel-to-IP
calls). This is interworked from the P-Asserted-Identity header in SIP 200
OK.
The default is [0] (i.e., unknown).
[ConnectedNumberPlan] Defines the Numbering Plan of the ISDN Q.931 Connected Number IE
that the device sends in the Connect message to the ISDN (for Tel-to-IP
calls). This is interworked from the P-Asserted-Identity header in SIP 200
OK.
The default is [0] (i.e., unknown).
Enable ISDN Tunneling Enables ISDN Tunneling.
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