Callender
AI voice reception — inbound · outbound · omni-channel

Call + Calender
One calendar for everything. Always live.

Callender answers every call and reads every email and message, then writes it all into a single calendar — no more digging through a dozen tabs and inboxes, and never a stale slot again.

Built for enterprise use

From access control to compliance to data integration — six ways Callender is ready to run at scale.

Paragraph-level access control

Scope permissions down to individual paragraphs of a document. Every read and write is recorded in an audit log you can review at any time.

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Multilingual call handling

Detects the caller's language automatically and responds in it — answering questions and logging details without per-language setup.

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VPC & on-premise deployment

Deploy inside your own VPC or fully on-premise. Data stays within your infrastructure, meeting data-residency and industry compliance requirements.

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Open data-source integration

Mainstream data sources work out of the box, and other systems connect through standard interfaces — no custom engineering required.

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A continuously synced knowledge base

The knowledge base updates incrementally as your sources change, so answers always reflect the current version of your data.

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Calendar-centred records

The source, handling and outcome of every event land on your calendar, kept in two-way sync with the scheduling tools you already use.

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Want to add a voice agent to your business?

Leave your contact info and our team will reach out via Lark to set up a tailored voice assistant solution.