for example. my company - 1 headoffice and 2 branch office in same country under same ISP . HERE head office as internet connection from isp using mpls ( dsl connectio). branch thy have 2 wimax data connection. my question . is it possible to share the internet connection from headoffice to some people in 2 branch office . and can i provide telephone to branch office also. from two branch office i can ping the headoffice lan ip also ? so is it possible ? thn hw ? pls guide am confuse..