AI voice agents that answer and place calls on phone numbers and on WhatsApp, with outbound calling campaigns, time windows, retries and a do-not-call list.
Rexenda: a Respond.io alternative for selling by chat and by phone
Respond.io is a conversation management platform for high-volume B2C messaging, with AI agents that can also answer inbound calls. Rexenda brings WhatsApp, Instagram, Messenger, Telegram, web chat, email and SMS into one inbox, and adds AI agents that also place calls, plus a sales pipeline, quotes and payment links.
- Free plan, no time limit
- No credit card required
Why teams look for a Respond.io alternative
Respond.io's voice AI agent answers inbound calls only: its help center states that outbound calling is not supported and that calls are capped at three minutes.
Live call handling by the AI agent is limited to the Advanced plan and above, and AI usage beyond the monthly credit allowance is billed automatically in on-demand blocks.
Pricing is based on users and monthly active contacts, and new accounts start with a seven-day trial rather than a permanent free plan.
What Rexenda does differently
During a call the agent books meetings and updates the CRM, the caller can interrupt at any time, and the transcript and summary land in the inbox.
Sales built in: leads with an AI score from 0 to 100, a pipeline board, quotes with a public acceptance link and card payment links paid into your own Stripe account.
A free plan with no time limit and no credit card. Plans count human users, not AI agents, and Rexenda does not charge for WhatsApp messages.
How to switch
Export your contacts from Respond.io as a CSV file and import them into Rexenda with column mapping and a review step; unrecognized columns become custom fields, and the import can be undone. Then, once your WhatsApp number is released from Respond.io, connect it with Meta's Embedded Signup, link Instagram, Messenger, Telegram and email, and rebuild your key workflows in the visual flow builder, where an AI can draft a flow from a plain-language description.
When Respond.io may still be the right choice
If you depend on channels such as Viber or LINE, keep your CRM in another system, or mainly need high-volume messaging with AI answering inbound calls, Respond.io may still fit you well.
Questions
Can Rexenda's AI agents make outbound calls?
Yes. Rexenda's voice AI agents answer and place calls on Rexenda phone numbers and on WhatsApp, where Meta requires the customer's call permission. You can run outbound calling campaigns with time windows, retries, cooldowns and a do-not-call list. An agent can only be activated after a successful test call, and voice minutes are paid from AI credits.
How do I move my contacts from Respond.io?
Export them from Respond.io as a CSV file and upload it to Rexenda. The importer proposes a column mapping that you review before importing. Columns it does not recognize are kept as custom fields instead of being dropped, and you can undo the import. Each contact keeps one identity across channels, and duplicates can be merged.
How is AI billed in Rexenda?
With AI credits. Each plan includes a monthly allowance, and you can buy extra credit packs. One AI reply costs one credit, and voice minutes, image reading and transcription draw from the same balance. The number of AI agents is not limited by plan, and WhatsApp message fees are billed by Meta to your own account, not by Rexenda.
Facts about Respond.io checked against its public website in October 2026.
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