Voip Loop-Line Test; Figure 4-15 Local Loopback And Remote Loopback On A Pots Port - Huawei HG8240 Service Manual

EchoLife HG8240/HG8245/HG8247 GPON Terminal
Service Manual
Precautions
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Procedure
Step 1 Make calls between VoIP users on an ONT.
Step 2 In the Physical Map navigation tree on the Main Topology tab page, double-click the target
OLT, or select the target OLT, right-click, and choose NE Explorer.
Step 3 In the navigation tree, choose GPON > GPON ONU.
Step 4 On the GPON ONU tab page, set the search criteria to find the GPON ONU records.
Step 5 Select a required record from the ONT list, and then click the The Ont's UNI Port Info tab in
the lower pane.
Step 6 Select a record from the list whose UNI Type is Pots, right-click, and choose Config Port
Loopback from the shortcut menu, as shown in the following figure.

Figure 4-15 Local loopback and remote loopback on a POTS port

Step 7 In the dialog box that is displayed, select a loopback type and click OK to start a test. The
loopback types include No Loopback, Local Loopback, and Remote Loopback.
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Result
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The communication recovers after loopback is cancelled or the phone is placed on the hook.

4.5.9 VoIP Loop-Line Test

A VoIP loop-line test is used for locating a fault that occurs on wires A and B. It includes the
voltage test, resistance test, and current test.
Issue 04 (2011-01-12)
The loopback can be set only after a call is set up.
After onhook, the communication ends and loopback is cancelled automatically.
Direct switching between local loopback and remote loopback cannot be performed. To
switch between local loopback and remote loopback, cancel the current loopback first.
After local loopback is set, the local voice is audible. If the local voice is not audible, the
POTS port of the ONT is faulty.
After remote loopback is set, the peer end can hear his/her echo. If the echo is not audible,
the link from the peer end to the local ONT is faulty.
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4 Maintenance and Troubleshooting
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