Pay-Per-Call (PPCall) model is going to boost small and medium business to take advantage of internet surfers, the new model allows business owners to advertise on search engine but this time allowing shoppers to dial in through 1-800-XXX-XXXX(toll free) numbers and complete the transaction.June 2004 July 2004 September 2004 October 2004 November 2004 January 2005 February 2005 March 2005 April 2005 May 2005 June 2005 July 2005 August 2005 October 2005 November 2005 January 2006 March 2006 May 2006 June 2006 July 2006 August 2006 September 2006 November 2006 March 2007 January 2008