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Customer support. Customer support is a range of consumer services to assist customers in making cost-effective and correct use of a product. [9] It includes assistance in planning, installation, training, troubleshooting, maintenance, upgrading, and disposal of a product. [9] These services may even be provided at the place in which the ...
A toll-free telephone number or freephone number is a telephone number that is billed for all arriving calls. For the calling party, a call to a toll-free number from a landline is free of charge. A toll-free number is identified by a dialing prefix similar to an area code. The specific service access varies by country.