AudioCodes Mediant 500 E-SBC, Руководство пользователя

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User's Manual 54. Configuration Parameters Reference
Version 6.8 837 Mediant 500 E-SBC
Parameter Description
incoming ISDN Connect message contains the Date / Time IE
does the device add the Date header to the sent SIP 200 OK
message.
Web/EMS: Min Routing
Overlap Digits
CLI: 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: This parameter is applicable when the ISDNRxOverlap
parameter is set to [2].
Web/EMS: ISDN Overlap IP to
Tel Dialing
CLI: 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.

[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.

[2] Through SIP INFO = The device sends the first received
digits from the initial INVITE to the Tel side in an ISDN Setup
message and then responds to the IP side with a SIP 183. For
each subsequently received SIP INFO message with additional
digits of the same dialog session, the device sends the collected
digits to the Tel side in ISDN Info Q.931 messages. For each
received SIP INFO, the device sends a SIP 200 OK response to
maintain the current dialog session and to receive additional
digits from subsequent INFOs.
Note: When IP-to-Tel overlap dialing is enabled, to send ISDN
Setup messages without the Sending Complete IE, the
ISDNOutCallsBehavior parameter must be set to USER SENDING
COMPLETE (2).
Web: Enable Receiving of
Overlap Dialing
CLI: ovrlp-rcving-type
[ISDNRxOverlap_x]
Determines the receiving (Rx) type of ISDN overlap dialing for Tel-
to-IP calls, per trunk.

[0] None = (Default) Disabled.

[1] Local receiving = ISDN Overlap Dialing - the complete
number is sent in the INVITE Request-URI user part. The device
receives ISDN called number that is sent in the 'Overlap' mode.
The ISDN Setup message is sent to IP only after the number
(including the Sending Complete IE) is fully received (via Setup
and/or subsequent Info Q.931 messages). In other words, the
device waits until it has received all the ISDN signaling
messages containing parts of the called number, and only then it
sends a SIP INVITE with the entire called number in the
Request-URI.

[2] Through SIP = Interworking of ISDN Overlap Dialing to SIP
according to RFC 3578. The device sends the first received
digits from the ISDN Setup message to the IP side in the initial
INVITE message. For each subsequently received ISDN Info
Q.931 message, the device sends the collected digits to the IP
side in re-INVITE messages.

[3] Through SIP INFO =Interworking of ISDN Overlap Dialing to
SIP according to RFC 3578. The device sends the first received
digits from the ISDN Setup message to the IP side in the initial