A call-ordering system and method enables convenient ordering in a call center transaction from a mobile phone. User profiles with identification data and a mobile phone number are matched to advertiser offers. Text messages are sent to the mobile phone numbers for matched users with a direct inward dialed (DID) number for response. Upon receiving an incoming call to the DID number from a responding user, an OfferRouter uses the caller and DID numbers to retrieve identification data for the user and offer data for the advertiser offer. The incoming call is then routed to a call center associated with the advertiser offer and the retrieved data are pushed to the call center's terminal system for pre-filling a transaction record for the offered item. The system may also be operated in tandem with a hotel guest registration system to register traveler profiles, the hotel's purchase management system to bill call center transactions to a guest's hotel bill, and the hotel's networked TV system to give guests an option to respond to an offer by using signals sent from the TV remote control unit to complete a transaction.