Multi-tenant by schema, not by a WHERE clause
Separating customers with a tenant column puts you one forgotten filter away from leaking call recordings. Structural isolation costs more up front and far less later.
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A caller switching from English to Tamil mid-sentence is normal
Indian callers mix languages inside one sentence. Systems built around a language menu handle it badly, and callers notice within two turns.
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Where the second goes: a latency budget for AI voice
A caller notices delay long before a second is up. Here is how that second is spent across speech, model and voice — and which part is actually worth optimising.
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Barge-in is the difference between a voice agent and a recording
Play someone a synthesised voice and they will forgive a lot: an accent that is not quite local, a slightly flat delivery, a pause…
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