The Internet boom in Australia may be too much of a good thing for leading modem maker NetComm. NetComm has announced it will scale down export-development activities to concentrate on meeting domestic demand. During the past six months the modem division had a 40 per cent revenue growth and 86 per cent volume. NetComm managing director Chris Howells said best returns in the immediate future would come from within Australia. Work in hand included the acquisition of Internet access provider Connect.Com.Au Pty Ltd; ISDN modems; and high-speed cable modems which, with more hybrid fibre-coax cable for telephone and pay TV, will help Australian users to be the first beneficiaries worldwide of 10 MBs/sec PC interconnection into the home. According to Howells, the $41 million ISDN market in Australia is restricted to larger corporate networking customers. He said there were indications that the total ISDN market in Australia would grow to over $200 million in 1997. Of this, about $50 million that should fall into the area of high volume commodity products.