Bharti Airtel has tied up with Hong Kong-based PCCW Global for offering its customers international connectivity.According to a release issued by Bharti today, its virtual private network service in India and PCCW Global's similar service will be connected to offer solutions through extended international connectivity.David Nishball, president (enterprise services), Bharti said: "We will extend the global reach of our customers. We will serve as the single point of contact for worldwide communication needs."