Carrier Pre-Selection

Carrier Pre-Selection (CPS) allows you to choose which telecommunications provider you want to carry your voice calls.
There is no inconvenience involved with CPS, no autodiallers, manual prefixing or PBX reprogramming; you keep your existing phone numbers and continue to make calls as usual.

Carrier Pre-Selection uses network access technology, so traffic originating from your site will be routed directly through our network with no need for prefix codes. The "selection" of the preferred provider is done automatically at point of entry (the local exchange) to the public voice network.

It takes approximately 10 working days to apply your cheaper telephony rates to your numbers. You will not experience any disruption with your telephony.

Wholesale Line Rental

Wholesale Line Rental (WLR) allows alternative suppliers, such as VoIP Unlimited to rent access lines on wholesale terms from BT, and resell the lines to customers, providing a single bill that covers both line rental and telephone calls. It was introduced to develop competition within the telecoms markets in the UK.

BT's line maintenance division BT Openreach will still manage faults and undertake installations for the physical phone line, VoIP Unlimited just bill you for it. Your phone number will remain the same and you will simply receive an itemised bill from VoIP Unlimited instead of BT for your PSTN and ISDN line rentals.