Trace A Call; Trace Function 01 - Avaya CS 1000 Maintenance Manual

Trace a call

A call can be traced from any attendant console or a telephone with CLTA class of service. To
trace a call, dial the following:
SPRE + 9912 + xx + yyy...
• SPRE = special function access code (defined in LD 15)
• 9912 = NCT feature code
• xx = call trace function (01, 02) Dial tone is provided after "xx" is dialed.
• yyy... = digits normally dialed for the network call

Trace function 01

This function provides the common information related to Electronic Switched Network (ESN)
routing. It is the recommended function. The following is the call trace data for function 01:
**** NCT xx **** <switch specific data> --- OUT --- <outgoing data> --- IN --- <incoming data>
--- STATE --- <call state>
Where xx is the call trace ID for a traced call. The output data depends on the type of call and
can be the following:
CAUSE xxxx—call reject cause CREF xxxx—call reference number DCH—D-channel number
DGT xxxxx...—outgoing: digits outpulsed DGT xxxxx...—state: digits received (NODE=TBD),
or digits dialed when the call is rejected (STAT=REJ) DN xxx—DN of ringing set ENT xx—entry
in the outgoing route list FCI x—free calling area index FRL x—facility restriction level
IFC xxx—outgoing D-channel interface (LD 17 prompt IFC)
D100 = Meridian DMS-100 D250 = Meridian DMS-250 ESS4 = AT&T ESS4 ESS5 =
AT&T ESS5 SL1 = Meridian SL-1 S100 = Meridian SL-100 SS12 = Norwegian SYS-12
AXEA = AXE-10 (Australia) UNKN = unknown data received
LOC xxxx—call reject software location MODE xxx—outgoing termination
ALOG = analog trunk DTI = digital trunk interface–1.5 Mb/s DTI = digital trunk interface–
2.0 Mb/s ISL = ISDN Signaling Link PRI = Primary Rate Interface UNKN = unknown
data received
NCOS xx—Network class of service NODE xxxx—type of node
ORIG = originating node TAND = intermediate node (tandem) TBD = node
undetermined
RLI xxx—ESN outgoing route list index RLS xx xx—software release, issue number of node
switch RTE xxx—incoming or outgoing route number SID xxxx—system identification (LD
17) STAT xxxx—call state, where xxxx can be
ISDN Primary Rate Interface Maintenance
Network Call Trace
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