We have created fault tolerant Voice and Internet Infrastructure to handle voice calls, e-mails, and chat. We have an International Private Leased Circuit (IPLC) to carry voice calls from the subscriber end to our facility. In case of a failure of IPLC, calls are automatically routed on an ISDN network. In case of a failure of both IPLC and ISDN, calls are routed on VOIP protocol using Internet. While AT&T is our IPLC provider, we have Qwest for our T1 voice and T1 internet supplier in USA. In India, our IPLC connectivity is provided by a TATA group company, VSNL and a government of India company STPI provides internet connectivity.