Melbourne’s most experienced phone line technicians
Licensed Insured
Accredited Friendly
Experienced On Time
Contact Phoneworks phone line technicians
Same Day Service - call before 11.00am
Call our head phone technician direct on 0419 120120

Network Termination Device (NTD)

Network Termination Device (NTD)

A "Network Termination Device" (NTD) is a cable connection device that is fitted to a single dwelling, individual living unit or small business in certain circumstances.

It has been developed to establish a clear Network Boundary Point of where the Telco’s responsibility finishes and the owner starts.

All wiring from the customer side of the Network Termination Device into the premises is the responsibility of the owner.

All wiring from the carrier side of the Network Termination Device towards the telephone exchange is the responsibility of Telstra regardless of who your provider is as they own the infrastructure.

The Network Termination Device has the capacity to be fitted with a DSL Central Filter, referred to as a DSL line module and is highly compatible for ADSL2 and ADSL2+.

All wiring from the carrier side of the Network Termination Device towards the telephone exchange is the responsibility of Telstra regardless of who your provider is as they own the infrastructure.

The Network Termination Device has the capacity to be fitted with a DSL Central Filter, referred to as a DSL line module and is highly compatible for ADSL2 and ADSL2+.

The Network Termination Device or NTD is also able to be fitted with additional line modules including Standard Line Modules for customers not requiring a Central Filter.

These line modules are individually fitted with an RJ 12 test socket for people who want to do their own basic testing.

When a modem or phone is plugged into the module, the premises will automatically be isolated allowing the client to connect straight into the Telstra network.

Identifying a Network Termination Device

The NTD is a light brown plastic box that is embossed with the wording Telstra and NETWORK TERMINATION DEVICE on the front cover. (See Photos below.)

Network Termination Device (NTD) solves ADSL line synch / drop outs

"Please pass on my sincerest thank you to Peter. I've not had a single line synch/drop out issue since he installed the new Network Termination Device (NTD)."



Network Termination Device (NTD) increases connection speeds

"Since the NTD was installed our ADSL connection speed has gone from an average of 17000kbps to 22280kbps downstream and from 860kbps to 1020kbps upstream (that's a big jump)."


Reporting a phone line or DSL line fault

If you are using the test socket on the NTD and have noticed a phone line fault or ADSL line fault, you will need to call your provider.

If your provider is Telstra, then you will need to call them.

If your provider is another company, then you will need to call them and NOT Telstra.

Be sure to ask the operator / consultant for a job number, for future reference.

If you are unsure where the ADSL / phone line fault is, you have the option to call one of our friendly staff at Phoneworks who will be more than happy to assist you.

Network Termination Device (NTD) Photos/Images

Correctly installed Network Termination Device Network Termination Device easily identifiable with the words Network Termination Device on the cover
Correctly installed Network Termination Device Network Termination Device
easily identifiable with the words
Network Termination Device on the cover
Network Termination Device with front cover open showing the DSL module with central filter Network Termination Device with front cover open showing the DSL module with central filter
Network Termination Device with front cover
open showing the DSL module with central filter
Network Termination Device with front cover
open showing the DSL module with central filter
Superceded Network Termination Device with with central filter Network Termination Device (NTD) with 3 phone lines / numbers.  One with ADSL and 2 without
Superseded Network Termination Device
with central filter
Network Termination Device (NTD)
with three phone lines / numbers.
One with ADSL and two without
Network Termination Device
Network Termination Device

10 Year Guarantee on all phone line repairs Optimise your ADSL Broadband now! Payment Options Key points why Phoneworks are leaders in the telecommunications service industry.