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Some Common Types Of Phone / Broadband Line Faults

Telephone engineer Manchester test phone

Whilst deep technical knowledge of the exact nature of a fault is not always helpful to a customer, having more of an idea of what might be going on may prove to be vital when you have to speak to your Internet Service Providers call centre agent. Especially if the fault has to be progressed to a level 2, 3 or a specialist agent.

Some Common Types Of Phone / Broadband Line Faults

Symptoms

Possible causes

Open circuit / Dis fault

Complete silence on the telephone handset when you pick it up, broadband may still work

Damaged wires, faulty or damaged telephone socket, faulty telephone line supply equipment at the exchange. Damaged customer owned wiring or equipment.

Short circuit / Loop fault

Complete silence on the telephone handset when you pick it up, broadband may still work

Wires touching, faulty or damaged telephone socket, faulty telephone supply equipment at the exchange. Damaged customer owned wiring or equipment.

Battery contact fault

Noisy line, hum, buzzing or crackle sound on the line

contact with an additional voltage source, such as another line circuit often caused by water acting as a conductor where wires have become poorly insulated. Damaged customer owned wiring or equipment.

Earth contact contact

Noisy line, hum, buzzing or crackle sound on the line

The line is being earthed somewhere along its rout from the exchange to your property. Wear & tear of cable insulation, damage to cable allowing contact of earth. Damaged customer owned wiring or equipment.

High resistance fault

Noisy line, hum, buzzing or crackle sound on the line

The effects of poor contact at a joint, this could be due to corrosion in unprotected joints. Often within the supplier network. One example of this would be a badly soldered or incorrectly inserted Main Distribution Frame joint at the exchange. Can lean to various types loss such as insertion loss, unbalanced signal transmission which generally lead to noticeable errors on both voice & data sides of the circuit. Damaged customer owned wiring or equipment.

Rectified loop fault

Incoming calls ring once then stop, caller will be on the line when the handset is picked up.

Corrosion across the pins in a telephone socket, corrosion across the PCB tracks in the socket, worn insulation in telephone cables especially when routed directly under high foot traffic areas. Could also be caused within the provider side of the network.

Split pairs fault

Overhearing or cross talk on the phone. High levels of errors on the broadband.

Mainly due to incorrect re-jointing of external cables within the supplier network.

Load coil fault

Designed to improve voice communications on a line. However dramatically negatively effects broadband services.

Consequences of introducing inductive devices along a cable to improve the low frequency response. Destructive to high frequencies of many broadband services. Generally only used in local loops longer than 5.5Km so should not be present on most broadband enabled circuits.

No authentication fault

You will have no internet access This will often not effect the ability of your router to detect that a physical connection is available.

The username or password in your router device has been reset or changed.

No synchronisation fault

You will have no Internet access, as a result your router will not be able to establish if your physical connect is available.

This is often due to a physical fault on the line or equipment from end to end of your circuit. It can also be caused by incorrect equipment configuration.

 
Provided by Burytec Telephone Engineer Manchester

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Burytec

Affordable Technical Help In The Home & Small Business

Burytec

Affordable Technical Help In The Home & Small Business

Burytec

Affordable Technical Help In The Home & Small Business

Burytec

Affordable Technical Help In The Home & Small Business

Burytec

Affordable Technical Help In The Home & Small Business