Consolidated Platform Configuration Guide, Cisco Ios Release 15.2(4)E (Catalyst 2960-X Switches - Cisco Catalyst 2960 series Configuration Manual

Cause Description 11.0
Codes
1816 - The call is no
Q850 being
Normal cleared
Clearing because
one of the
users who
is involved
in the call
has
requested
that the call
be cleared.
This code
applies to
ISDN or
modem
calls that
came in
over ISDN.
11.1 11.2 11.3
no no no

Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)

Information About TACACS+
12.0 12.1 12.2
no no no
12.3
yes
855