The VocaLink transaction switching platform

Switching and settling ATM transactions are a core part of VocaLink’s business. The VocaLink ATM switch is the busiest in the world, switching over 2.5 billion shared ATM transactions annually on behalf of 49 Members. The network is a major payment system that is critical to the UK payments infrastructure, whilst the LINK ATM Scheme Operating Rules and procedures define the terms of business between the members.

The VocaLink central switch operation has a secure telecommunications link to member host systems of many types and sizes, and gateway services to VISA and MasterCard. The system is backed up by an overnight settlement process (settling in excess of up to £430 million daily) and full management information.

New peaks in volume continue to be achieved for the number of daily, weekly and monthly transactions managed by the VocaLink central switch. New developments are planned to continue this outstanding growth. This will accommodate added functionality at ATMs (e.g. mobile phone top-ups and the move to smart-card technology).

VocaLink's drive to improve network efficiency for LINK scheme members ensures that switch availability has been 100% for the last three years.