Tata Communications has tied up with IP communications company Sonus Networks to expand the reach of its global voice network.

Tata Communications has tied up with IP communications company Sonus Networks to expand the reach of its global voice network. In the first phase of transition from the existing network to a new IP network, the two companies will cover cities like Montreal, Toronto, Los Angeles, London, Frankfurt and Singapore. In addition, Tata Communications will also use Sonus’s Network Border Switch to interconnect the voice networks for seamless IP services across continents.