Specifications

Administration Tools
77
• Individual or Batch Line Quality Test: Reports the loss level, Echo Return Loss (ERL), and
line quality for a specified trunk(s). A recommended setting is provided based on the test
results.
• Individual or Batch Distortion/Echo Test: Measures the non-linear distortion effects (for
example, from clipping) of a specified LS trunk(s) for each candidate balance circuit setting.
The Line Quality test allows technicians to obtain the optimum Balance Network Setting and
Trunk Category for each LS trunk, based on the signals received from the CO. These settings
are then programmed into the Analog Trunks form of the LS trunk to reduce the possibility of
echo and audio level issues between the trunks and IP phones.
Technicians can run the Loop Start (LS) Measure tests using calls between a 3300 ICP and
CO, or by looping calls through one LS trunk on the 3300 ICP back through other LS trunk on
the same 3300 ICP.