Version 7.2 1235 Mediant 800B Gateway & E-SBC
User's Manual 72. Configuration Parameters Reference
Parameter Description
NFAS Interface ID
configure voip > interface e1-t1 >
isdn-nfas-interface-id
[ISDNNFASInterfaceID_x]
Defines a different Interface ID per T1 trunk.
The valid range is 0 to 100. The default interface ID equals the
trunk's ID.
Note:
 To
set the NFAS interface ID, configure ISDNIBehavior_x to
include '512' feature per T1 trunk.
 The x in the ini file parameter name denotes the trunk
number, where 0 is Trunk 1.
 For more information on NFAS, see ISDN Non-Facility
Associated Signaling (NFAS) on page 509.
72.11.7 ISDN and CAS Interworking Parameters
The ISDN and CAS interworking parameters are described in the table below.
Table 72-62: ISDN and CAS Interworking Parameters
Parameter Description
ISDN Parameters
Send Local Time To ISDN
Connect
[SendLocalTimeToISDNConn
ect]
Determines the device's handling of the date and time sent in the
ISDN Connect message (Date / Time IE) upon receipt of SIP 200 OK
messages.
 [0] Disable = (Default) If the SIP 200 OK includes the Date
header, the device sends its value in the ISDN Connect Date /
Time IE. If the 200 OK does not include this header, it does not
add the Date / Time IE to the sent ISDN Connect message.
 [1] Enable = If the SIP 200 OK includes the Date header, the
device sends its value (i.e. date and time) in the ISDN Connect
Date / Time IE. If the 200 OK does not include this header, the
device uses its internal, local date and time for the Date / Time IE,
which it adds to the sent ISDN Connect message.
 [2] Always Send Local Date and Time = The device always sends
its local date and time (obtained from its internal clock) to PBXs in
ISDN Q.931 Connect messages (Date / Time IE). It does this
regardless of whether or not the incoming SIP 200 OK includes
the Date header. If the SIP 200 OK includes the Date header, the
device ignores its value.
Note:
 This feature is applicable only to Tel-to-IP calls.
 For IP-to-Tel calls, the parameter is not applicable. Only if the
incoming ISDN Connect message contains the Date / Time IE
does the device add the Date header to the sent SIP 200 OK
message.
Min Routing Overlap Digits
configure voip > gateway
dtmf-supp-service dtmf-and-
dialing > min-dg-b4-routing
[MinOverlapDigitsForRouting]
Defines the minimum number of overlap digits to collect (for ISDN
overlap dialing) before sending the first SIP message for routing Tel-
to-IP calls.
The valid value range is 0 to 49. The default is 1.
Note: The parameter is applicable when the ISDNRxOverlap
parameter is set to [2] or [3].
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