VoiceDialer

VoiceDialer is the hardware-adjacent part of the platform — the piece that actually rings the phone. It sits on top of a carrier or SIP trunk (Twilio, Vonage, Bandwidth, a local ILEC — it is carrier-neutral) and exposes a single call-placement API that the AI orchestrator can call without caring which carrier, which number pool, or which region is in play.

The quiet work happens before the first ring. Each call is routed through a caller-ID pool so that doctors do not see the same number twice (which telecom-spam filters flag), a local prefix is preferred (a doctor picks up a local number at roughly twice the rate of an overseas one), and the carrier is chosen for the destination's route quality — not the sales desk's preferred vendor.

During the call, VoiceDialer handles the unglamorous plumbing: audio streaming both ways, DTMF capture for the rare IVR handoff, automatic re-dial on carrier-level failures, and a hook into ChatRecorder so every second of audio has an audit trail. Everything an operations team wants to inspect — SIP trace, jitter, drops, completion codes — is available on a per-call timeline.

Scale is linear. A campaign of ten thousand calls an hour runs on the same dialer as a campaign of twenty: the only thing that changes is the size of the number pool and the carrier quota, both of which are configuration, not code. Operators get one slider — concurrent-calls — and a dashboard that shows how close to the ceiling they are in real time.