Electronics
Fashion & Apparel
Furniture
Jewelry and Watches
Afterschool Activities
Sport & Fitness
Beauty Center
Dental Clinic
Medical Clinic
Home Cleaning & Maid Services
Photography & Videography
Car Dealership
Travel Agency & Tour Operator
VoIP Calls Reach Customers Beyond WhatsApp
Give your team a full business phone line inside respond.io — call any mobile or landline number, worldwide, without switching tools or relying on external phone systems
Respond.io VoIP Calls Capabilities
- Reach mobile phones and landline numbers around the world, directly from your inbox
- Claim a dedicated business phone line to make and receive calls on respond.io
- Skip desk phones and hardware — everything works inside the platform your team already uses
- Sync every call with native CRM integrations like HubSpot and Salesforce, alongside messages and contact details
- Track call volume, duration and other activity metrics for every agent and team
- Disable calls for specific agents, or allow only outbound calls, without changing their other workspace access
- Record and review calls for quality assurance, training and compliance
- Transfer ongoing calls to the right agent or team, including live handoffs from Voice AI Agents, without disrupting the customer experience
- Generate clear AI call summaries to reduce manual note-taking and help teams act on what was discussed
- Send call data to external systems via webhook triggers — completed-call payloads include recording, transcript and summary, ready to sync with your CRM, trigger workflows or log for compliance
Why use respond.io for VoIP calls
VoIP calls needs a paid Telnyx phone number and Telnyx's own identity verification before you can make or receive calls. If your contacts are all reachable on WhatsApp and you don't need to call landlines or numbers outside WhatsApp, respond.io's WhatsApp Business Calling API uses your existing WhatsApp Business number instead, with no separate Telnyx account to set up.
- Reach mobile and landline numbers that WhatsApp Business Calling API can't dial, from the same inbox
- No markup from respond.io — pay Telnyx directly for the number and per-minute rates
- Use the same Telnyx number for VoIP Calls and WhatsApp Business Calling, so agents aren't juggling two numbers
- Enterprise-grade reliability with 99.999% uptime, ISO 27001, GDPR compliance and role-based access controls
FAQs about VoIP Calls integration
What's the difference between VoIP calls and WhatsApp Business Calling API?
VoIP Calls, powered by Telnyx, can reach any mobile or landline number worldwide. WhatsApp Business Calling API only connects a verified WhatsApp Business account to a WhatsApp user — it can't dial regular phone numbers. You can use the same Telnyx number for both, so agents handle every call type from one inbox.
Can I use my existing phone number for VoIP Calls?
In many countries, yes — Telnyx supports porting an existing number into your account for use with respond.io, though it requires supporting documents and Telnyx's own verification process.
How much do VoIP Calls cost?
VoIP Calls run on a pay-as-you-go model billed directly by Telnyx, not respond.io. You pay for the phone number (typically $2–$8/month depending on country) plus per-minute call rates starting from $0.007/min depending on destination. Respond.io adds no markup on top of what Telnyx charges.
Do I need to install a separate app to make VoIP calls?
No. Once your Telnyx number is connected, calls are made and received directly inside respond.io — from the Inbox on desktop or the mobile app — with no separate Telnyx app or extension required.
