Capability
Outbound Voice Calling At Scale
19 artifacts provide this capability.
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1
Fixie AIAgent39/100
via “bidirectional real-time audio streaming with concurrent call handling”
Platform for deploying conversational AI agents.
Unique: Dedicated infrastructure with per-tier concurrency guarantees (5 free, unlimited Pro) rather than shared inference pools. Eliminates contention and latency variance by isolating customer workloads on purpose-built infrastructure managed by Ultravox.
vs others: Predictable concurrency and latency vs cloud LLM APIs (OpenAI, Anthropic) which use shared inference pools and offer no concurrency guarantees or per-tier limits.