User's Manual

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SMCD3GNV4 and SMCD3GNV4E Wireless EMTA Gateway Administrator Manual
MTA Page
Path: MSO Screen > MTA
The MTA page is organized into three sections:
y Error Codewords unerrored, correctable, and uncorrectable number of codewords.
y Enterprise MIBs shows the Enterprise Management Information Bases used by the Gateway.
y GR909 Test consists of a suite of standards-based electrical tests that can be used to identify
several common issues with VoIP connections, such as an off-hook phone or voltage on a VoIP line.
Using the GR909 Test area, you can perform a GR909 test. The GR-909 test actually consists of
five tests:
– Hazardous Potential and Foreign Electrical Motive Force tests detect voltages that should not
be on the telephone line(s).
– Resistive Faults Test detects shorts on the telephone lines, including possible shorts to ground
and shorts that can result from the two phone line wires coming in contact. This condition can
happen from corroded jacks or with inexpensive splitters.
– Receiver Off Hook test searches for devices on premise that may be keeping the line open,
such as a telephone or fax machine.
– Ringers Test measures the electrical load on the line, typically referred as the REN Ringer
Equivalency Number. This test can fail if there are too many devices connected to the line or if
the test does not detect any load, suggesting no operable device connected on the line.
To perform a GR909 test:
1. From the Line Number drop-down list, select the line on which you want to perform the test.
2. Click the Start TEST button to begin the tests. At the end of testing, the results are displayed.