LEGISLATORS studying the Bill creating a new regulatory framework for Hongkong Telecommunications have been threatening to delay its progress unless concessions are made, including a controversial move to force the company to give extra data about its revenue. Ironically, the delays to the Bill are improving the company's profits by $40 million or more a month as they are delaying associated cuts in international call charges. Legislators in the sub-committee examining the Telecommunications Ordinance and related legislation want the company to prove its claim that international call charges subsidise its allegedly loss-making local business, by publishing separate accounts in the way that Hongkong Telephone and Cable and Wireless did in the mid-1980s. Without this, some legislators say the rise in line rentals should be lower than the inflation figure supported by the Government. Mr Steven Poon Kwok-lim, the committee convenor, said legislators were taking particular care over the Bill as once the new telecommunications regulator and other bodies were set up the company would be able to make price changes within the new framework without seeking permission. On whether legislators would attempt to crack the consensus already reached by the Government and Hongkong Telecom on pricing and regulation, he said: ''I really don't know. We're hitting some rocks here.'' Mr Peter Hamilton, a spokesman for Hongkong Telecom, said the company would not release extra data to the public, although it would do so to the new regulatory authority now being set up. ''It's just a case of trusting the regulator,'' he said. However, other utilities such as China Light and Power, which had Mr Poon as board member for 27 years, have long published accounts to justify price increases on monopoly services. For Hongkong Telecom, ''there is no information and for a controlled company this is not satisfactory'', Mr Poon said. At this time last year, Hongkong Telecom executives were saying the new charging regime could begin on January 1 this year, an estimate later changed to April 1. Now, the earliest date would be June 1, with further delays possible. Mr Hamilton said the company was not studying plans to backdate changes, which would mean giving cash back to callers. Mr Philip Mok Wan-yu, an analyst with Barclays de Zoete Wedd, said delays in passing the Bill were a factor in a recent upgrading of his profit estimates, and said a two-month delay in implementing the package could benefit the company significantly, although the gain would not reach $100 million. However, the impact was smaller than continuing strong growth in international calls. Mr Poon said some of his colleagues were also pushing for the company to publish the accounting rates, the now-secret figures which govern the profits shared by the two national telephone companies carrying an international call. Mr Ricky Wong Wai-kay, regional director for City Telecom International, a fledgeling competitor to Hongkong Telecom for international calls, said he had told legislators his rival could ''play around with the numbers'' unless it made a full disclosure. He and other independent companies are worried the company may reap big profits from residential line rentals and other services where it faces no competition and use these profits to subsidise other areas where competition is hot. He and other potential new entrants have also told legislators that the new authority must have sufficient legal experts to cope with grey areas in the regulations. One potential grey area already discovered is the use of videophones that use an ordinary telephone lines. These may - or may not - be put in the same category as ordinary telephones. Other points of contention include the terms of reference of the Telecommunications Authority and the rules which allow competing networks to connect with Hongkong Telecom's. Mr Poon said another ''sensitive item'' was the legislation which stated that all directors of Hongkong Telephone, a subsidiary of Hongkong Telecom, had to be Commonwealth citizens. ''We are moving from the old days to the new era,'' he said.