Applies to: Match Terra 400 and part number TR400 on the installed unit. The shared manual also names Oceana 400; do not extend its instructions to Terra 800, an IsatDock cradle or another Beam terminal. Record the existing antenna and cable-kit labels without disconnecting them.
Match your symptom
| What you see | What to do next |
|---|---|
| Separate data use from voice availability | Check the existing USB data session, the call’s direction and the handset tone before treating a voice failure as an antenna fault. |
| Identify an incoming call that has not ended | Check the existing USB data session, the call’s direction and the handset tone before treating a voice failure as an antenna fault. |
| Read the tone before changing settings | Check the existing USB data session, the call’s direction and the handset tone before treating a voice failure as an antenna fault. |
Work through these checks
Separate data use from voice availability
Manual page 24 says a USB circuit-switched data connection prevents RJ11/POTS voice calls in either direction and gives an unavailable tone. The call LED flashes yellow during data use. Read this state with the owner of the data application; do not start another paid session, unplug equipment or terminate a managed transfer merely to test voice.
What the result means: Check the existing USB data session, the call’s direction and the handset tone before treating a voice failure as an antenna fault.
Identify an incoming call that has not ended
For incoming calls, page 24 documents a default hold of about 90 seconds after the local POTS handset is placed on hook. The calling party can end it immediately by hanging up. Distinguish this documented behavior from a new failed call; do not repeatedly redial while the previous call remains active. Record direction and elapsed time for support.
What the result means: Check the existing USB data session, the call’s direction and the handset tone before treating a voice failure as an antenna fault.
Read the tone before changing settings
Page 25 distinguishes a continuous dial tone, short progress beeps three seconds apart, and a fast rising off-hook warning after more than 15 seconds out of a call. PIN and PUK prompts are separate security states: use provider instructions, never guessed codes. Preserve Falcon call-processing settings; page 24 says they can modify dialed prefixes when enabled, so record that state rather than copying another installation’s numbers.
What the result means: Check the existing USB data session, the call’s direction and the handset tone before treating a voice failure as an antenna fault.
When to stop and get help
If the terminal sounds an alarm, use its normal power control to switch it off safely and stop. Beam associates this alarm with an RF short; leave antenna and cable fault isolation to a qualified technician.
What to tell support
For support, supply the TR400 label, antenna and cable-kit identification, LED state, exact message and whether the problem affects voice or data. Keep account identifiers private. Historical modem and software instructions may target older computers; confirm supported software with Beam rather than installing unrelated drivers or firmware.
Original troubleshooting guidance based on the official sources below. Menu names can change. This is an independent guide, not a manufacturer service bulletin or a bench-tested repair.