The 10 best AI secretary tools in 2027
Compare 10 AI secretary tools for messages, scheduling, calls, and email follow-up. See which job each one fits in 2027.
Blog: voice, email, and SMS
Tutorials and guides for developers who place phone calls and send email with an API.
The 12 best AI telephone platforms in 2027
Compare 12 AI telephone platforms for answering and placing calls. See what each one fits in 2027, from small teams to contact centers.
The 13 best AI receptionists in 2027
Compare 13 AI receptionist options for businesses of any size, from call answering to booking and handover. See which one fits your 2027 plans.
The 9 best virtual phone assistants in 2027
Compare 9 virtual phone assistants and answering services for business calls, from live receptionists to AI. See which one fits in 2027.
Hard bounce vs soft bounce in 2027: what each one means and what to do
Hard bounce vs soft bounce: when to retry an email and how an email suppression list prevents repeat sends.
Construction answering service in 2027: an AI agent that answers every job site call
Set up a construction answering service with an AI phone agent. It answers contractors' calls, takes job details, and hands urgent calls to your crew lead.
IVR system for small business: 7 IVR service providers in 2027
Compare 7 providers for an IVR system for small business in 2027. Review call menus, AI agents, setup, and billing.
Plumbing answering service in 2027: sort emergencies from quotes with an AI agent
Set up a plumbing answering service that tries your on-call plumber for urgent calls. Collect messages for routine jobs.
Property management answering service in 2027: AI for tenants, prospects, and owners
Set up a property management answering service for calls and texts. Take messages and try on-call staff for urgent calls.
Voicemail detection for AI phone calls in 2027: how it works and what to do next
Voicemail detection (answering machine detection, AMD) tells an AI caller if a person or a machine answered. See how it works and how Hail handles it.
Warm transfer in 2027: how to hand a live call from an AI agent to a person
A warm transfer passes a live call to a person with context. Learn warm vs cold transfer, and how an AI phone agent hands over a call on Hail.
Cold calling AI: what US law allows for AI sales calls in 2027
Cold calling AI is legal only with the right consent. Learn the TCPA rules for AI cold calling, the DNC registry, and how to avoid TCPA violations.
After hours answering service in 2027: voicemail, people, or an AI agent
Compare after hours answering service options: voicemail, a human service, and an AI agent. Then set up after hours call answering with Hail.
AI outbound calls: make your first call
Place an AI outbound call with one API request. Learn how AI voice calling works: statuses, webhooks, voicemail, consent, and a reminder call template.
AI phone agent: how it works and how to build one in 2027
An AI phone agent answers and places calls. Learn how AI voice agents work and how to build one.
Find leads and launch outbound messaging at scale with email, texts, and calls
Find leads and start email, text, and call campaigns from Claude, using the messages you've written. Connect FullEnrich and Hail MCP to get started.
DMARC policies explained in 2027: none, quarantine, and reject
Learn how DMARC policies handle email that fails authentication. Compare none, quarantine, and reject to choose a policy for your domain.
How to send email with an API and track delivery
Send email with an email sending API or your AI assistant. Hail tracks each message for you, from sent to delivered, bounced, or opened.
Make your first AI phone call with a voice API
Place your first AI phone call with Hail’s voice API. Set a system prompt, confirm recipient consent, and read the call status.
Sender setup guides
Read about US 10DLC registration and email domain warmup. For phone calls, read the voice API page.
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