Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
From the blog
Practical techniques to reduce voice AI agent latency below 500ms — covering streaming STT, early TTS start, connection reuse, speculative generation, and end-to-end pipeline optimization strategies.
Voice AI agents from companies like CallSphere, Bland AI, Retell AI and Vapi now handle over 1B calls per month globally, with 85% resolution rates transforming the contact center industry.
Learn the three-stage pipeline that powers every voice AI agent — speech-to-text, language model reasoning, and text-to-speech — including latency budgets, streaming strategies, and practical implementation patterns.
LA-Long Beach-Anaheim has 8,000+ HVAC techs and demand 37% above the national rate. With heat pump mandates and 19% of homeowners replacing systems in 2026, missed calls cost $4,000+ apiece.
When a chat conversation needs voice, the worst answer is a phone number. Here is how to escalate chat to voice in the same session with shared context in 2026.
G.722 fixed 64 kbps with sub-2 ms latency or Opus 6-510 kbps with adaptive bitrate? For voice AI agents the answer depends on whether your media path crosses a SIP trunk or stays end-to-end WebRTC.
Rtcrtpsender createencodedstreams insertable streams example: the W3C Encoded Transform Working Draft (April 2026) replaces Insertable Streams. Here is how production AI voice teams plan the migration and what is shipping today.
38.4M Americans live with diabetes and 85% of non-traumatic lower-limb amputations start with a foot ulcer. CMS tightened 2026 podiatry documentation, making intake calls the new bottleneck. Here is how voice AI captures Medicare diabetic patients without front-desk burnout.
Structured onboarding drives 40 to 60 percent higher retention and AI-led onboarding cuts time-to-value by 20 to 30 percent. Here is how to build an in-app chat that drives activation, not just answers questions.
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