ZyXEL Communications IES4005M - No Voice on a DSL Connection; No Voice on a VoIP Connection

Chapter 28 Hardware Troubleshooting
IES4005M User’s Guide
219
8 After a successful firmware upload, type atgo to restart the IES.
28.7 No Voice on a DSL Connection
The ADSL line cards allow the telephone wiring used for DSL connections to also simultaneously
carry normal voice conversations.
28.8 No Voice on a VoIP Connection
Check the POTS and line card connections between the subscriber, the MDF(s) and VOP1164G-61.
Table 138 Voice Troubleshooting
STEP CORRECTIVE ACTION
1 Make sure the subscriber has a POTS splitter properly installed.
2 Check the telephone wire connections between the subscriber and the MDF(s).
3 Check the telephone wire and connections between the MDF(s) and ADSL port(s). Refer to the pin
assignments in Section 4.2.3 on page 30.
4 Check the telephone wire and connections between the MDF(s) and the POTS port(s). Check the
telephone wire mapping on the MDF(s).
5 Check the connection from the MDF(s) to the PBX or the telephone company PSTN or ISDN switch.
6 Make sure the in-house wiring works and is connected properly.
7 Repeat the steps above using a different DSL port.