CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
â– [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.
â– [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:
â– This feature is applicable only to Tel-to-IP calls.
â– 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
[MinOverlapDigitsForRouti
ng]
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].
'ISDN Overlap IP to Tel
Dialing'
configure voip >
gateway dtmf-supp-
service dtmf-and-
dialing > isdn-tx-
overlap
[ISDNTxOverlap]
Enables ISDN overlap dialing for IP-to-Tel calls. This feature is
part of ISDN-to-SIP overlap dialing according to RFC 3578.
â– [0] Disable (default)
â– [1] Through SIP = The device sends the first received digits
from the initial INVITE to the Tel side in an ISDN Setup
message. For each subsequently received re-INVITE
message of the same dialog session, the device sends the
collected digits to the Tel side in ISDN Info Q.931
messages. For each received re-INVITE, the device sends
a SIP 484 Address Incomplete response to maintain the
current dialog session and to receive additional digits from
subsequent re-INVITEs.
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