Telephony

Connect your voice agents to phone networks via Twilio, Telnyx, or Plivo.

Telephony

Telephony lets your voice agents receive and make phone calls. Lyzr supports three carriers: Twilio, Telnyx, and Plivo.

Supported carriers

Carrier	Inbound	Outbound	Notes
Twilio	✓	✓	Widest global coverage
Telnyx	✓	✓	Cost-effective, lower latency
Plivo	✓	✓	Strong Asia-Pacific coverage

Connecting a carrier

1. Open Voice in the sidebar, then select the Telephony tab
2. Select your carrier
3. Enter credentials (Account SID + Auth Token for Twilio; similar for Telnyx and Plivo)
4. Purchase or import a phone number
5. Assign the number to a voice agent

Inbound vs. outbound

Inbound — Users call your phone number. The call routes to your voice agent.

Outbound — Your agent initiates calls to users (appointment reminders, proactive outreach, campaign follow-ups).

Analytics

All calls are logged with duration, transcript, message count, recording, and close reason. View call analytics in the Transcripts tab under Voice.

Full voice agent reference

See Voice Agents overview for engine configuration (Realtime vs. Pipeline), latency trade-offs, and transcript analysis.