Jingellic Telstra mobile tower restored after fire destroyed the station

"Nothing could survive" the heat which ripped through on January 4, leaving the Telstra tower burnt and the hut wiped out.

Telstra boss Andy Penn visited the new tower on Friday and was "blown away" by the blackened mountain it sits atop.

"We're really pleased to be able to get this tower up and running in a relatively short period of time," he said.

Mr Penn said a bulldozer took and hour and a half to drag the new hut, which weighs three tonne, up the side of the mountain.

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"The hut is where all the electronic and routeing equipment is and that had been completely taken out by these fires, but the antennas on top of the tower were also taken out," he said.

"It is really hard to get a sense of the impact on these communities and how terrifying and significant it is without coming here for yourself.

"Seeing it just shows you the extent of the fires and how scary it must have been if you were here personally.

"I can't imagine how scary it would have been and to have disruptions in communications during that time, which is unavoidable when you see how much damage was done to our equipment, it just adds to that concern and anxiety so we are pleased to be able to get it back up."

The tower wasn't destroyed until January 4, which saw some of the worst fire conditions, but the tower actually lost power on December 31 when the Green Valley Talmalmo fire first started.

Backup generators were brought in to restore the tower while power was down but shortly after that was installed the fire came through the mountain destroying everything.

Mr Penn said it was a serious of unfortunate events for the Jingellic tower, which had only just undergone an upgrade two weeks earlier.

"We had upgraded his tower from 3G to 4G and there were a few issues getting that right," he said.

"But we are now pleased to say it is up and running and is actually better service than before."

A few upgrades will continue to be done to the site in the coming weeks including a new fence around the tower and a step into the hut.

Full mobile service was restored to Jingellic on January 31.

A Prime7 tower, which sits next to the Telstra tower, was also destroyed in the blaze.