DITECH Packet Voice Processor, Руководство по управлению

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Introduction
250-0800-06, Version A 19
D I T E C H N E T W O R K S
w w w . d i t e c h n e t w o r k s . c o m
1
Introduct
ion
Packet Voice Processor Commands Manual
1.5 Quality of
Service The Packet Voice Processor offers Quality-of-Service or Ditech’s Experience
Intelligence
™
(EXi) solutions. EXi capabilities include filtering, threshold provisioning,
and report generation. Filters are used to create call data sets, and thresholds are
used to create rules/profiles that are used to measure against the call data sets to
generate alarms. Reports are generated for the user to review and to assist the user
with the following issues:
Network Quality Assessment
Network Troubleshooting
Network Dimensioning
Service Level Agreement and Verification
1.5.1 Network Quality Assessment
Experience Intelligence solutions monitor for network impairments that result in calls
with poor quality. These network impairments may include packet loss, jitter, hybrid
echo, acoustic echo, noise level, a poor signal-to-noise ratio (SNR), and poor speech
levels.
In addition to monitoring for specific network impairments, EXi solutions also monitor
the network’s overall voice quality, providing both MOS and R-Factor data.
1.5.2 Network Troubleshooting
A major requirement for carriers is the ability to locate the ultimate source of a
network problem, and the ability to handle the problem to reduce cost and help
generate revenues.
EXi solutions analyze the voice quality measurement results performed by the
Packet Voice Processor to detect failure patterns. For example, the Packet Voice
Processor can review calls from an IP address to see if echo exists at this specific IP
address, and can further help determine whether this problem is a configuration
issue.
EXi solutions monitor all quality metrics to detect failure patterns including jitter,
packet loss, statistics, hybrid echo, acoustic echo, speech and noise level, and SNR.
1.5.3 Network Dimensioning
A carrier needs to know if its network has sufficient resources to handle all calls and
when its network devices need to be upgraded and/or expanded. EXi solutions
monitor all quality metrics affecting network capacity including packet loss, jitter, calls
per second, the delay trend, and dropped calls.
1.5.4 Service Level Agreement and Verification
In Peering Applications, the partners agrees upon a quality of service level described
in a Service Level Agreement (SLA). A carrier needs to have the following
information:
If the Peering Partner is providing the level of service committed to in the SLA.
If the carrier is providing the level of service committed to in the SLA.
EXi solutions monitor all quality metrics affecting the SLA including packet loss, jitter,
echo, SNR, and noise level.