ZyXEL Communications IES-1248-51 Guía de usuario descargar pdf (Pagina 570)

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Chapter 70 Troubleshooting

IES-1248-51V User’s Guide

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70.7 There Is No Voice on an ADSL Connection

The IES-1248-51V has internal POTS (Plain Old Telephone Service) splitters and

VoIP capabilities that allow the telephone wiring used for ADSL connections to also

simultaneously carry normal voice conversations.

70.8 I cannot make or receive phone calls.

ADSL is working, but VoIP calls cannot be made.

Table 222 ADSL Voice Troubleshooting

STEP CORRECTIVE ACTION

1 Ensure that the subscriber’s ADSL is working normally.

2 Make sure the subscriber has a POTS splitter properly installed.

3 Check the ADSL line pin assignments shown in Chapter 71 on page 579.

4 Check the telephone wire connections between the subscriber and the

MDF(s).

5 Check the telephone wire and connections between the MDF(s) and ADSL

port(s).

6 Check the telephone wire mapping on the MDF(s).

7 Make sure the in-house wiring works and is connected properly.

8 Repeat the steps above using a different ADSL port.

Table 223 Phonecall Troubleshooting

STEPS CORRECTIVE ACTION

1 Ensure that the hardware is correctly installed. Ping the MGC from the IES-

1248-51V to ensure that it is reachable.

2 The MG function may be use misconfigured or the MG function may be

disabled.

•Use the voip h248 mg show command to check the MG configuration

•Use the voip h248 mg set <mg-name> <h248-profile> [mg-port]

command to configure the MG function.

•Use the voip h248 mg enable command to activate MG function.

3 The H248 profile may be misconfigured.

•Use the voip profile h248 show [name] command to check the H248

profile.

4 The port may be disabled.

•Use the voip port show <port> command to check the port status.

•Use the voip port enable <port> command to activate a port.

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