Avaya Communication Manager Administrator's Manual page 1211

SBS
Appears when the Local Country Code and International Access Code fields are
administered on the Feature-Related System-Parameters screen and when the
Supplementary Service Protocol is b and the Group Type field is isdn and Carrier Medium
is IP and Dial Access is n on page 1 of the ISDN trunk group screen.
Valid entries
y/n
Send Called/Busy/Connected Number
Appears if the QSIG Value-Added field on the Trunk Group screen is y. Specifies if the dialed
number, whether called (ringing), busy (busy tone), or connected (answered) is sent on
incoming or tandemed ISDN calls. Valid entries are y, n, or r (restricted). If y is entered, the
ISDN Numbering - Public/Unknown Format screen is accessed to construct the actual
number sent, or the ISDN Numbering-Private screen (based on the Numbering Format field)
is used. If the value is r, the connected number is sent "presentation restricted." The Send
Called/Busy/Connected Number field must be set to y in order for the Calling Party Number of
an incoming ISDN call to display at the transferred-to station after a QSIG transfer operation.
Send Calling Number
Specifies whether the calling party's number is sent on outgoing or tandemed ISDN calls. Valid
entries are y, n, or r (restricted). If y is entered, the ISDN Numbering - Public/Unknown
Format screen is accessed to construct the actual number to be sent, or the ISDN
Numbering-Private screen (based on the Numbering Format field) is used. If the value is r,
the calling number is sent "presentation restricted."
When Send Calling Number is n, an incoming number is not tandemed out again. Similarly,
when Send Calling Number is r (restricted), an incoming number is marked restricted when it
is tandemed out again. This applies to all Supplementary Service Protocols.
Note:
The ISDN Numbering - Public/Unknown Format screen can override the Send
Note:
Calling Number field entry for any administrable block of extensions.
Send Codeset 6/7 LAI IE
Specifies whether the ISDN trunk should transmit information in Codeset 6/7. If the UUI IE
Treatment field is shared, then this field should be n. Otherwise, the same information will be
sent twice and might exceed the message size. Default is y for pre-DEFINITY 6.3 compatibility.
Usage
Enter y to enable Separation of Bearer and Signaling (SBS) for the trunk
group. The default is n (SBS is not enabled).
ISDN Trunk Group
Issue 2.1 May 2006 1211