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1 PSN Services Service Descriptions - Government Procurement ...

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o Simple Control: changes call routing on live Advanced plans; certain Advanced<br />

Feature settings only<br />

o Full Control: design, build, modify and implement Advanced call routing plans<br />

Common Intelligent <strong>Service</strong> Layer (CISL) details<br />

o The supporting technology of Inbound Contact is based on CISL with some services<br />

provided via Recorded Information Distribution Equipment (RIDE). Reliability is<br />

designed into the platforms by means of replication and redundancy. This currently<br />

results in the achievement of 99.999% reliability. The Contractors network is<br />

proactively managed 24 hours a day, 365 days a year.<br />

o CISL is the backbone of the Inbound <strong><strong>Service</strong>s</strong> supporting technology. It is a resilient<br />

IP based platform on which most of the Inbound products are provided. It provides<br />

service from 4 sites. The two main CISL A&B sites are Reading and Crawley while<br />

the C&D sites are Milton Keynes and Nottingham and all 4 CISL sites will have the<br />

same Network functionality. If any failure happens at one site, the other sites take<br />

the call traffic over immediately.<br />

o RIDE is a mass call termination platform that plays pre-recorded announcements and<br />

captures voice messages and data. This service is provided by 40 identical nodes<br />

spread across the UK, so that calls are answered as close to call origination as<br />

possible in order to minimise network congestion. Each node contains duplicated

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