Optus will be installing a phone tower under the Federal Government's Mobile Black Spot Program.

There will be 12 new base stations to be delivered in the NT which also includes Larrimah.

While campers and the many visitors to Leliyn (Edith) have long complained about the lack of coverage, it is an important tool for rescuers as well.

Last year the lack of coverage is believed to have hampered coordination of the search effort for missing Queensland man.

A huge air, land and water search was mounted for Queensland man Alex Rosenberg in August last year without success.

Mr Rosenberg is believed to have perished but his body has still not been found.

Under Round 4 of the program, $4.5 million will be invested in mobile infrastructure in Northern Territory. This includes, $2.2 million funding from the Commonwealth.

The Mobile Black Spot Program is delivering 1047 new base stations and generating over $760 million of new investment in mobile infrastructure including contributions from state and local governments, mobile network operators, businesses and local communities.

Base stations under the first three rounds are scheduled to be operational by 30 June 2019. Round 4 base stations are expected to roll out shortly with the first new base stations being activated by the second half of the year.

The list of Northern Territory locations: Arltunga Vc, Chambers Pillar, Devils Marbles, Dunmura Wayside Inn, Edith Falls, Ellery Creek Big Hole, Larrimah, Palm Valley, Shady Camp, Tobermorey, Trephina Gorge East, Trephina Gorge West.

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