Nearly 100 Telstra subcontractors, who install Foxtel and broadband services, barricaded the telco's head office in Melbourne today in a protest against new contracts that include a 20 per cent drop in earnings.
The Communications Electrical and Plumbing Union (CEPU) said the protesters surrounded the Telstra building in their trucks after a stop work meeting.
CEPU secretary Len Cooper warned the dispute could go national with meetings planned in Queensland and Perth.
Plans are under way to meet Telstra officials later today and if the dispute isn't resolved another meeting will be held Wednesday to determine further action.
"There's some talk of having a blockade outside of Foxtel at Moonee Ponds (Vic)," he said.
However, a Telstra spokesperson disputed the union's claims, saying the protesters did not barricade the building and the demonstration caused little disruption.
The dispute about earnings, the spokesperson said, was not with Telstra but between the contractors and their subcontractors.
"The issue is with the contractors and their employees; however, Telstra will continue to work with the contractors," she said.
While services have been rescheduled for today, the spokesperson said significant delays to services were not expected.