Hi Tony,
There are numerous call center in the UK/US who are outsourcing/ sub-letting their work to India call centers. It all depends the team that you hire. With a little bit of hand holding, the team in India show great results. I am currently working with various companies in the US/UK and they are quite happy with our performance, but it happened over the period of time. Should you have any queries, you can reach us on internet. Thanks, Afzal Haque