Technical data

9 Single Tests
51
ARGUS 3u plus/3u NT
CF
(CFU,
CFB,
CFNR)
In this test, the ARGUS checks whether the 3
supplementary services CFU, CFB and CFNR
are supported.
CFU: Can this access immediately forward an
incoming call?
CFB: Can this access forward an incoming call
when it is busy; in other words does it support
Call Forwarding Busy?
CFNR: Can this access forward an incoming
call when it is not answered?
The CF test attempts to setup a call diversion
to the call number that is in the memory
location for “remote call number 1” (see
“Saving Call Numbers” on page 129). The CF
test cannot be performed, if this location does
not contain a valid call number to which it is
possible to divert a call.
CW Does the access under test support call
waiting?
CCBS Will the access under test automatically recall
a remote subscriber, if the number called was
busy?
CCNR Will the access under test automatically recall
a remote subscriber if the call was not
answered?
MCID Does the access tested allow identification of
malicious callers (call tracing)?
3pty Does the access under test support a three-
party conference call?
For this test, you need the assistance of a
remote subscriber, whose call number must be
entered.
ECT Is an explicit call transfer supported by the
access under test?
For this test, you need the assistance of a
remote subscriber, whose call number must be
entered.