# WhatTheFone > Documentation for the WhatTheFone business phone system. ## Docs - [Business profile](https://docs.whatthefone.com/account/business-profile.md): Keep your business details current. - [Sign-in and roles](https://docs.whatthefone.com/account/sign-in.md): Secure sign-in and role-based access. - [AI on Business](https://docs.whatthefone.com/ai.md): AI on every conversation with the Business tier. - [Equipment and leasing](https://docs.whatthefone.com/billing/equipment-leasing.md): Desk phone lease terms. - [Invoices](https://docs.whatthefone.com/billing/invoices.md): Find invoices, plan, and payment method. - [Plans and terms](https://docs.whatthefone.com/billing/plans-and-terms.md): Monthly and annual billing explained. - [Softphone apps](https://docs.whatthefone.com/calling/apps.md): iOS, Android, Mac, and Windows. - [Routing and queues](https://docs.whatthefone.com/calling/routing.md): Send calls to the right lane. Pro and Business. - [Voicemail and transcription](https://docs.whatthefone.com/calling/voicemail.md): Read voicemails and forward them to email. - [Activate service](https://docs.whatthefone.com/getting-started/activate-service.md): Finish setup after checkout. - [Choose a plan](https://docs.whatthefone.com/getting-started/choose-a-plan.md): Three tiers, monthly or annual billing. - [Create your account](https://docs.whatthefone.com/getting-started/create-account.md): Sign up and enter your business details. - [Buy or lease](https://docs.whatthefone.com/hardware/buy-or-lease.md): $120 once, or $5 per month with a 12-month minimum. - [Desk phone setup](https://docs.whatthefone.com/hardware/setup.md): Plug-and-play setup for the WhatTheFone desk phone. - [How WhatTheFone works](https://docs.whatthefone.com/how-it-works.md): Lines, numbers, apps, and optional hardware. - [Introduction](https://docs.whatthefone.com/index.md): Set up and run your WhatTheFone business phone system. - [Getting new numbers](https://docs.whatthefone.com/numbers/new-numbers.md): Search local or toll-free numbers. - [Porting existing numbers](https://docs.whatthefone.com/numbers/porting.md): Bring your current numbers with no gap in service. - [Getting help](https://docs.whatthefone.com/support.md): Reach a human at WhatTheFone.