Police yesterday appealed for Scotland to get a single public information hotline as they struggle to handle thousands of misdirected calls every day.

Frustrated senior officers have watched spending soar as they try to field 16,000 calls a day, many of which should have gone to other services and many as a result of people dialling 999.

Now they want to see a single number, say 101 or 888, for all non-emergency calls to public services, including the police.

The proposal came as Audit Scotland said the public was still confused over whom it should phone for non-emergency calls.

The Association of Chief Police Officers in Scotland said it was "watching with interest" pilot projects for a 101 non- emergency police phone line in England and Wales.

Its spokesman on telecommunications, Doug Cross of Tayside Police, said: "Acpos is keen to see this developed as a public service number in Scotland rather than being restricted to dealing just with antisocial behaviour.

"In addition, Acpos has recognised the need for forces to work with its partners in all communities throughout Scotland in developing a list of appropriate telephone numbers for households and businesses that can direct residents to the most appropriate service they may need until such a single non-emergency number is developed."

Forces spend £45m a year on call handling, dealing with an ever-increasing daily total that has been attributed to the huge rise in mobile phone ownership.

Emergency 999 calls make up only a small proportion of calls. But, thanks to mobiles, forces regularly get numerous reports of the same incident. They also get a lot of accidental emergency calls. Fully a quarter of all 999 calls in Britain are "silent", with people inadvertently phoning.

Non-emergency calls make up the bulk of the police's burgeoning telephone traffic. Audit Scotland carried out its own research, finding that fully one-third of Scots thought they should phone the police (rather than the council) if their neighbours were noisy and 8% believed the police would want to know if they were locked out of their house. Another 16% said they would phone the police for traffic information.

Bill Aitken MSP, the Tories' justice spokesman, agreed with Acpos. He said: "One option to consider is the creation of a national non-emergency phone number, such as 888. The call could be received at a central point and a message sent to the local divisional police office."