Like 1-800 calls

• Type of call
• Like a 1-800 number
• Involving no payment to feller at work
• Involving no charge
• 800, say
• Like most customer support numbers
• Like 1-800 numbers
• Like calls to 1-800 numbers
• One way to call

Wiktionary Word definitions in Wiktionary
a. (alternative spelling of toll-free English)