February 21, 2011 By BigFilly
A domestic single British telephone line installation has just one master socket or line box in the premises, that is provided by BT or another service providers: this socket is the demarcation point between your customer-owned and maintained on-premises wiring, and the telephone network.
NTE5 line Box
Identifing the Fault
Since BT does not have a monopoly of internal wiring, they charge a substantial amount ifyour fault reported to them turns out to be in the customer’s internal/domestic wiring. It is therefore important for the customer to have the facility to check on whether any problem
or fault is due to their internal wiring/equipment or externally in BT’s cabling or systems. Since the NTE5 socket represents the official
demarcation point between the internal/domestic wiring (at the removable front of the socket which is the customer’s responsibility) and the external telephone line/cabling fixed at the rear (that is BT’s responsibility) the physical disconnection of the two wirings (made possible with the NTE5′s removable front plate) is crucial in pinpointing faults and allocating responsibility for their rectification hence contacting independent telephone engineers would problably be the better option.
To use Broadband internet services simultaneously with voice telephony, it is vital to use a DSL filter. This is basically two filters, which divide the single line into two discrete channels. Enough bandwidth is retained for voice telephony and the majority is used for high speed data. All phones must be connected using a filter (either a separate filter for every phone or one filter covering numerous phones) to stop interference between your phones and the DSL signal. Where the data transmission is still unduly audible, using two DSL filters, daisychained in tandem, will eliminate the problem.