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FirstVoice AI

Integrations · Real estate CRM

AI receptionist for Rex

The short answer

Yes. FirstVoice connects straight to Rex, finds contacts by phone number, creates leads, books calendar events and adds notes from every call.

Connect RexBooks directly

Last updated

Try it

Watch a call go into Rex.

Incoming call

Example caller · Mobile

An example call, sped up. Your setup follows your own questions and rules.

  1. A caller rings about a listing or an appraisal
  2. FirstVoice finds them in Rex by phone number, or creates a new lead
  3. It books appraisals and viewings into the right calendar
  4. It adds a note from the call so the agent has the details
  5. It never answers questions about specific properties, and books a call back instead

FirstVoice with Rex

Buyer and appraisal calls go straight into Rex.

What happens on a call

  1. A caller rings about a listing or an appraisal
  2. FirstVoice finds them in Rex by phone number, or creates a new lead
  3. It books appraisals and viewings into the right calendar
  4. It adds a note from the call so the agent has the details
  5. It never answers questions about specific properties, and books a call back instead

Getting connected

  • You add FirstVoice as a user in your Rex account. Depending on your Rex plan, this may use one user seat
  • We set up and test everything, and you can remove access any time
Technical details, for whoever looks after your software

FirstVoice with Rex

FirstVoice capabilities with Rex
Check availability during the callYes
Create bookings, jobs or leadsYes
Recognise returning callersYes
Add call notes and summariesYes
Trigger follow-up texts or emailsYes

Rex connection details

Rex connection details
CategoryReal estate CRM
MarketsAU, NZ, UK
API documentationPublic view docs
ZapierYes
FirstVoice planGrowth or Scale
CheckedAgainst official Rex documentation, 17 September 2026

Zapier account for the automation route

Rex questions

Does FirstVoice work with Rex?

Yes. FirstVoice connects straight to Rex, finds contacts by phone number, creates leads, books calendar events and adds notes from every call.

Do I have to change anything in Rex?

No. FirstVoice connects to your existing Rex account. You don't switch software, move data or retrain your team.

Which plan includes Rex?

Growth ($597 a month) and Scale.

Rex is a trademark of its owner. FirstVoice isn't affiliated with Rex.

Using Rex? Let's connect it.

Free personalised demo in 24 hours · Free 2-week trial, set up by us · No credit card · Then from $297 a month