The upgrade will enable Vodafone to offer new functionality and features to its customers while building in greater capacity to cater for increasing customer demand, a Vodafone spokesperson told Computerworld Australia.

"The new voicemail system uses the latest technology to allow for future development of new voicemail features and products," the spokesperson said.

"It also has greater capacity, giving us the ability to cater for future capacity demands."

In July, Vodafone said it would to enable to delivery of 2G, 3G and 4G technologies from a single base station by mid 2012.

During the month the company also said it had involving the installation of new mobile equipment at 49 sites across Newcastle, parts of the Central Coast, and the Hunter.