Telnyx VoIP is a cloud-based voice solution that enables businesses to make and receive traditional phone calls directly on respond.io. This integration allows teams to manage voice conversations alongside messaging channels in one unified workspace.
Learn how to create and connect your Telnyx VoIP account to respond.io here. Once connected, your team can handle inbound and outbound calls, access call logs, and manage phone numbers directly through the Telnyx portal.
Pricing
Telnyx VoIP operates on a pay-as-you-go model. Users are billed directly by Telnyx, with no additional charges from respond.io.
Outbound calls: From $0.007/min (depending on destination)
Inbound calls: From $0.0055/min
For accurate and up-to-date pricing, visit the Telnyx pricing page.
Managing Calls
Telnyx VoIP enables traditional phone communication with your customers. Here’s how your team can get started:
Phone number purchase: After connecting a Telnyx sub-account, purchase local or international phone numbers in the Telnyx portal. International numbers may require submission of additional documents — see Telnyx documentation for details.
Voice interactions: Use the respond.io Inbox to make and receive calls using your Telnyx number.
Call logs: All call activity is automatically logged in respond.io for reference and reporting.
In addition to call logs, recordings (if enabled in Workspace Settings → Calls) will appear in the Contact drawer and in Reports: Calls.
Channel Capabilities
Once your Telnyx VoIP channel is connected, your workspace will support the following features:
Capability | Availability |
|---|---|
Outbound calling | ✅ |
Inbound calling | ✅ |
Call logging | ✅ |
Call status tracking | ✅ (e.g. missed, answered) |
Call control (mute, hold, end) | ✅ |
Call transfer | ✅ |
Call transfers
Telnyx Calls now support call transfers, allowing agents to transfer active calls to other available teammates within the Workspace.
How to transfer calls
Click the Call Transfer icon on the call card.
Select the agent you want to transfer the call to.
(Optional)Add a note to provide context before transferring.
Notes:
Agents with restricted call capabilities won’t appear in the transfer list.
Agents who are already on a call cannot receive a transfer — the initiating agent will see a snackbar notification if the transfer fails.
If the receiving agent doesn’t answer within 30 seconds, the call automatically reverts to the initiating agent.
Call Coverage
Voice Coverage: Global inbound calling is supported. Outbound calls to countries outside the US require additional verification. Note: International outbound calling requires Level 2 Verification.
Calls cannot be made if the Telnyx number status is not active. You’ll see an error in respond.io if the number is inactive.
Limitations
Due to the nature of Telnyx and respond.io’s integration model, the following limitations apply:
Sub-Account Limits: A maximum of 3 Telnyx sub-accounts can be created per respond.io workspace.
Trial Users: VoIP Channels are disabled for trial users.
Manual Number Purchase: Phone numbers must be purchased and managed within the Telnyx portal.
White-Labeling: Telnyx is not white-labeled. Users will interact directly with the Telnyx dashboard for account setup, verification, payments, and number management.
Automation & Workflows: Automation based on VoIP call events (e.g. missed calls) is currently out of scope.
