DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1336PRI-CDR/SEC-CDR (Call Detail Recording Link)
9
PRI-CDR/SEC-CDR (Call Detail Recording Link)
The CDR feature records detailed call infor mation on all incoming and outgoing
calls on specified trunk groups and send s this information to a CDR output
device. The two physical links c an be administered fo r connecting external CDR
output devices to the system. They are id entified as the primary CDR (PRI-CDR)
link and the secondar y CDR (SEC-CDR) link. The CDR device connects to the
system via a data module (PDM, MPDM, DTDM) connected to a por t on a TN754
Digital Line circuit p ack that is administered as a d ata extension. A CDR device
can also be connec ted through an ADU to a port on TN726B. The CDR link to the
processor is via a system por t. A system port is comp rised of a port on the
TN726B Data Line circuit pack and a port on the TN553 Packet Data circ uit pack
connected to eac h other in a null-modem fashion. Refer to the PDATA-PT section
for information on the system port conne ctivity. External CDR output devices
include:
■94A Local Storage Unit (LSU)
■TELESEER CDR Un i t
■Call Accounting System (CAS)
■Call Detail Recording Unit (CDRU)
■Printe r
■Host computer
■Personal computer (PC)
■Customer-provided eq uipment
CDR Link Maintenance provides a strategy for maintaining the link between the
system and an external CDR output devi ce. The strategy includes a set o f tests
for periodic d iagnosis, detection of errors d uring normal operation, a ctions for
troubleshooting, and raising alarms for serious problems. CDR Link Maintenance
uses a try-and-wait mechanism for mai ntaining the CDR link. If the CDR link is
torn down due to an error, CDR Link Maintenanc e tries to bring the CDR link up.
If the Link Setup fails, CDR Link Maintenance will wait for 30 secon ds before the
next retry. If the number of retries reaches a threshold (two), a Minor al arm is
raised for service attention.
MO Name (in Alarm
Log) Alarm
Level Initial Command to Run Full Name of MO
PRI-CDR/SEC-CDR MINOR test cd r primary/secondary l CDR Link
PRI-CDR/SEC-CDR WARNING test cdr primary/second ary CDR Link