AudioCodes Mediant 500 E-SBC, User Manual

Page: 838 / 920

User's Manual 838 Document #: LTRT-10437
Mediant 500 E-SBC
Parameter Description
INVITE message. 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
348 .
CLI: ovrlp-rcving-type
[ISDNRxOverlap]
Same as the description for parameter ISDNRxOverlap_x, but for
all trunks.
Web/EMS: 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-band
DTMF digits received during ISDN overlap dialing (disables the
DTMF in-band detector).
Note: This 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).
Web/EMS: Enable ISDN
Tunneling Tel to IP
CLI: isdn-tnl-tel2ip Enables ISDN Tunneling.

[0] Disable (default).