While Sideline does support outbound calls to 1-800 numbers, it does not have an inventory of 1-800 (toll-free) numbers for you to choose as your Sideline number.
A toll-free telephone number is a telephone number that is billed for all arriving calls instead of incurring charges to the originating telephone subscriber, and generally begins with one of the following three-digit codes: 800, 888, 877, 866, 855 or 844
If you need information on collect calling and correctional facilities, please see our help center article here.
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