The Other domains which falls under Non voice related is Mortgage process partly, Logistics process, cheque processing, forms processing, litigation c

The Other domains which falls under Non voice related is Mortgage process partly, Logistics process, cheque processing, forms processing, litigation coding, email support, Banking back office handling, Accounting related forms processing, Health care , Engineering services, Legal process outsourcing, Content management, document management , knowledge management etc.,

Yes outsourcing can cater any areas of business but what’s the benefit that is question.
This is right there are many reasons for doing so.

1) Saving the investment and working capital Cost
2) Improvement in Productivity and Turn around time
3) Outsourced company focus on Core Business
4) Value added service since domain expertise handles the process

Overall it increases the Quality and service to the customers which is the top most importance in present conditions.