good day, for your first question it would depend on what functions well. I suggest to try and ask this to an IT company..
2nd question – you’ll have to market. usually international clients will look at the set-up of your center.. and i would suggest a good 100 seater as a start up and you should still be able to expand if required. you can ask assistance with any web hosting companies if you need help for web design etc.
3rd question, unfortunately none that i know, most campaigns are stumbled upon thru regular ad campaigns, however, there are already existing clients with other call centers, if you plan on pirating some of these clients, you should have a well feasible and financially enticing proposal for them.
Lastly, wage range for agents are 16,000 to 22,000 tops. TLs go from min. 28,000 to 35,000. Supervisors or team mgrs. 50,000 up… Operations managers min. 75,000 – 85,000.. Client Managers and Business development Officers 85,000 – 100,000. depending on qualifications..
Salaries may vary depending on the budget per account..