More than 600 jobs will be lost in Australia when Telstra sends the positions to India.

A spokeswoman for the company said the proposed changes would move 463 existing Telstra roles and 208 contractor jobs to Asia over the next 12 months "to support our growth in the region".

Telstra also launched its voice over long-term evolution (VoLTE) solution, which will let customers make high definition phone calls over internet connections. Credit:Rob Homer

The losses come from Telstra’s Global Services division as the company ramps up its ambitions in Asia.

Telstra staff were officially told of the plans late on Wednesday afternoon.