Best Twilio ConversationRelay Alternatives
Connects any language model to live phone calls for voice agents
#1
LiveKit
Open-source real-time audio and video infrastructure for voice agents
#2
Vapi
Voice AI platform for building phone and voice agent applications
#3
OpenAI Realtime API
Low-latency speech-to-speech API for voice AI applications
#4
Bland AI
AI phone agents for inbound and outbound calls
#5
Retell AI
Voice agent platform for phone calls