Avaya Communication Manager Administrator's Manual page 1633

SCCAN
This field appears when the Group Type field is sip and Enhanced EC500 on the System
Parameters - Customer Options screen is set to y. When this field is set to y, the
non-SCCAN-associated fields are hidden.
Valid entries
y/n
Send Answer Supervision
This field appears when the Trunk Signaling Type field is cont or dis and only applies to
TN2140 ports.
Valid entries
y/n
Send Release Ack
This field appears when the Trunk Signaling Type field is cont or dis and only applies to
TN2140 ports (used for Italian and Hungarian tie trunks).
Valid entries
y/n
Sig Bit Inversion
When transmission facilities use bit-oriented signaling (such as CAS), 2 bits are used to
transmit seizure and release signals for calls. Called the A-bit and the B-bit, their meaning can
vary. For example, in the A-bit a "1" might mean on-hook and a "0" might mean off-hook. The
entry in the Country Protocol field on the DS1 Circuit Pack screen sets the default meaning of
these bits.
Usage
Enter y to indicate that this trunk group provides support for incoming
SCCAN calls. Default is n.
Usage
Enter y to make Communication Manager signal the calling media server
or switch when an incoming call is answered. You can only set this field to
y if the Direction field is incoming or two-way.
Usage
Enter y to send a release acknowledgment in response to a forward or
backward release signal.
Trunk Group
Issue 2.1 May 2006 1633