Feature · Multi-Channel Deployment
One agent. Every channel.
Voice (phone), WhatsApp, Email, Web-chat — your agent runs across all of them. Conversation context survives the channel switch. Built on Twilio + Vonage.
What it does
Your client's customers don't pick channels by what your tool supports — they pick what's convenient. Email at the office, WhatsApp on the train, a quick phone call when they're driving. KILN agents reach all of them with a single configuration.
The conversation memory follows the visitor across channels. A customer starts via email, escalates to a phone call — the agent already knows who they are and what they were asking about.
Voice runs on real telephony (Twilio + Vonage), with low-latency speech-to-text, mid-call function calls, and human handoff. The same agent that handles your web-chat answers the phone.
How It Works
Three moving parts
Configure the agent once
Set the system prompt, knowledge base, and actions. Channel-specific overrides (voice tone, WhatsApp greeting) are optional add-ons.
Connect channels
Provision a Twilio phone number. Connect WhatsApp Business via the Cloud API. Drop the embed widget on your client's site. Add an email forwarding rule.
Watch one inbox
Conversations from every channel land in a unified inbox per agent. Threading is per-visitor, not per-channel — same person across email and phone shows as one thread.
Use Cases
What agencies actually build with this
Lead-Capture Phone Line
Run an inbound voice agent that qualifies and books a calendar slot. Drop into web-chat for visitors who prefer typing.
Support Across Channels
Customer emails a question, follows up via WhatsApp the next day. Same context, no re-explaining. Agent handles tier-1, escalates tier-2 to a human.
Outbound Email Sequences
Trigger personalized email sequences from a workflow. Replies feed back into the agent for autonomous follow-up.
Technical details
- Twilio + Vonage telephony adapters for inbound + outbound voice
- WhatsApp Business Cloud API native integration
- Email inbound + outbound (SES, Postmark, Resend)
- Embeddable web-chat widget (one <script> tag, white-label-ready)
- Cross-channel session memory keyed by visitor identity (email, phone, cookie)
- Per-channel transcripts with full audit trail and replay
Ready to build with this?
Free forever for testing. Start charging your first client by next week.