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19 Operation on an ISDN Access
ARGUS 152
227
Test
Explanation
TP
The ARGUS tests the TP (Terminal Portability) supplementary service by
making a self call.
HOLD
The ARGUS tests the HOLD supplementary service by making a self call.
CLIP
The ARGUS checks, one after the other, whether the 4 supplementary services
CLIP, CLIR, COLP and COLR are supported. To do so, the ARGUS will setup
as many as three calls to itself.
CLIP:
Will the calling subscriber's number be displayed at the called
subscriber?
t = CLIP temporarily available
p = CLIP permanently available
CLIR:
Will the display of calling subscriber's number at the called subscriber
be suppressed or is it possible to temporarily suppress the display?
If the ARGUS displays an
*
, it is not possible to determine the
availability of the service, since no CLIP has been setup.
t = CLIR temporarily available
p = CLIR permanently available
COLP: Will the call number of the subscriber who answered be displayed on
the caller's phone?
COLR: Will the display of the call number of the subscriber who answered be
suppressed on the caller's phone or is it possible to temporarily
suppress the display? If the ARGUS displays an
*
, it is not possible to
determine the availability of the service, since no COLP has been
setup.
The suppl. services CLIP, CLIR, COLP and COLR will be tested in pairs. If
CLIR or COLR is set up permanently, it is not possible to make a clear
assessment.
DDI
Can a caller directly dial in to an extension on the PBX access under test?
CF
The ARGUS will check 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?