Knowledge Base - Test Socket Procedure

‘Conscious Decision To Appoint’ is an acronym to confirm that the customer is aware of potential charges if an engineer attends the site and proves that there is no fault with the line.

‘Excess Construction Charges’ are raised when additional infrastructure is required to provide new or extended service at a customer’s site.

‘Public Switched Telephone Network’ is the world's collection of interconnected voice-oriented public telephone networks, both commercial and/or government owned. It's also referred to as the Plain Old Telephone Service (POTS) or, more commonly, as Analogue lines.

It is now almost entirely digital in technology except for the final link from the Digital Local Exchange (DLE) to the customer. It is also used for the transmission of ADSL and other data services (e.g. Process Data Quickly (PDQ) Machines) and alarm lines.

Auxiliary Lines are Multi Lines that provide a single phone number across a group of between two and 200 lines. They let incoming calls be routed to the first available line or be routed cyclically using all the lines in the group in turn. It supports more than one incoming or outgoing call simultaneously and offers a residential or business telephone directory listing.

‘Bring Into Service’ is the final step on an ISDN30e New Provide order where Openreach will bring the circuit into service. This is actioned after the installation work has been completed.

‘Customer Premises Equipment’ is equipment belonging to the customer on site (e.g. PBX, Telephone, Fax Machine etc.).

‘Carrier Pre Select’ is a way of routing calls on behalf of a customer over a particular communications provider. This is done at the exchange, so no codes are needed to be dialled.

‘Direct Dial Inward’ is an extension on an ISDN system. These are physical lines internally after the main socket.