There are few VOIP (ILC) based based callcentres in India.
It is feasible to start with 16 seats or 24 seats using this technology since it is very economical. There are predictive dialers available at low cost as well as CTI servere if there is requirement for handling inbound calls also.
The technology is becomming popular in India and it is ideal for small BPO centres which function as total contact centres for US/UK and other European clients .
you can contact the VOIP equipments providers or ISP’s who provides rawbandwidth to get more information on technology