Avaya MCC1 Maintenance Procedures page 142

Server initialization, recovery, and resets
Link Recovery
Table 52, Cross-product interactions due to link failure,
interactions due to link failure-induced time delays.
Table 52: Cross-product interactions due to link failure
Product or adjunct
Terminals
Adjunct Switch Applications
Interface (ASAI)
Voice Mail adjuncts
(AUDIX, Intuity, Octel)
Call Detail Recording (CDR)
Call Management System
(CMS)
Property Management
System (PMS)
Voice Response Systems
(Conversant)
Memory impact of capacity changes
This feature does not impose any significant impact on memory beyond that normally required for call
processing.
Performance impacts
Endpoint State Information Audit
synchronize endpoint state information between the server and the IP endpoint presents no more of a load
than that required to perform the routine lamp and switchhook audit. However, if a large number of H.323
endpoints must re-register, server performance is likely to degrade during the re-registration process.
Features and services
the link is actually "down." If a call on an IP endpoint is in progress when the link loss occurs, the voice-
path on that call remains in service. However, access to and/or operation of any server-based features or
services will not occur until the link is re-established.
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Description
Time-of-Day, busy lamp states, and call appearance status on some
sets might not instantaneously reflect the correct information until
the H.323 Link Bounce Recovery process has successfully
recovered the signalling link and synchronization has occurred.
ASAI-based applications that utilize timing loops, time-related
methods or events, might not accurately perform as intended.
Furthermore, applications that depend upon a rigid state machine
model and do not accommodate time-outs or missing state
transition(s) might behave in an unpredictable manner.
During the recovery interval callers connected to AUDIX remain
connected even if they hang up. AUDIX might automatically
disconnect these calls if the connection remains intact without the
calling party entering tone commands to AUDIX or voicing a
message. AUDIX does not respond to button depressions during the
link outage.
As a result of a link recovery, it is possible that the CDR 'call
connection time' could be erroneous.
Statistics might not accurately reflect actual usage; accuracy
depends on the length of the outage.
Time-related features such as Automatic Wake-up, Daily Wake-up,
and Housekeeping Status do not operate at all or as expected if the
H.323 link fails in the course of their activation. For example, wake-
up calls might not ever occur if the link outage occurs at the time of
the call.
Conversant applications might not gracefully accommodate the loss
of signaling to an endpoint to which the application is attempting to
connect.
Following the link restoration, the audit that is performed to
The H.323 Link Bounce Recovery feature impacts call processing only while
on page 142 describes the performance
Maintenance Procedures
December 2003