Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
From the blog
Picking the right SLIs for a voice agent is harder than picking SLIs for a REST API. Here's how CallSphere defines first-token latency, intent accuracy, and call-success rate across six verticals.
EVS delivers up to 20 kHz audio bandwidth and superwideband fidelity for VoLTE/VoNR calls, but most AI voice stacks transcode it down to 16 kHz before the model ever sees it. Here is the 2026 reality.
Insertable Streams unlocks frame-level access for noise suppression, watermarking, and AI inference inside a WebRTC pipeline. Here is the 2026 production playbook.
CMS-0057-F lit a fire under prior authorization in January 2026, and CMS-0062-P extends the regime to drugs by 2027. Here is how a HIPAA-compliant AI voice and chat workflow actually runs in 2026.
Bland charges $0.09/min bundled. Move to OpenAI Realtime + your own Twilio trunk and cut per-minute cost in half — full migration code, parity tests, and ramp plan.
22 million Invisalign cases done, 6.5M teen treatments active, and aligner therapy is now 30-45% of the average orthodontic caseload. Yet 23% of consult calls go unanswered. Here is how voice AI books the aligner consult before the lead bounces.
Intercom Fin publishes a 51% average resolution rate, Pylon claims 50% on eligible inquiries, and the rest of the market quotes 70%+ by mixing containment with resolution. Here is how to build a tier-1 deflection chat that actually works.
NATS 2.11 ships per-message TTLs, subject delete markers, and cluster_traffic isolation. We map every feature to AI-agent event flow and show how CallSphere wires it across a 6-container Real Estate pod.
ESL is still the cleanest way to drive FreeSWITCH from an AI brain in 2026: outbound mode keeps media threads off the GPU, inbound mode gives you a firehose of channel events. Here is what changed and how to wire it.
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