Fresh speculation has surfaced that internet provider Callplus is negotiating to purchase rival Orcon.
If it happens, the deal would see the country's third biggest internet company Callplus - the parent of consumer provider Slingshot - hold 13 per cent of the market.
Orcon presently has about 5 per cent market share and CallPlus 8 per cent.
While the purchase would give Callplus more scale, its market share would be less than half its next biggest competitor, Vodafone.
Callplus chief executive Mark Callander would not return calls for comment on the rumours and two of the internet company's board members could not be reached for comment.