Comparison and omissions¶

Call quality¶

There is no supported call-quality telemetry in this stack. Poly Lens and the phone management API do not provide MOS, jitter, packet loss, latency, codec or per-call duration. polylens2otel does not invent placeholder metrics for them.

Syslog¶

Phone syslog belongs in an existing Alloy syslog pipeline. This exporter does not open a syslog receiver or duplicate those records.

Webhooks and event history¶

The Lens tenant has no generic webhook, event stream or event-history query. The device WebSocket carries connection changes only and supplements polling.

Scaling¶

Series count grows with device count, not call volume. Metrics hold per-device aggregates; CDR records are logs. A cardinality.max_devices guard defaults to 500 and refuses to collect above that limit while emitting polylens2otel.api.unexpected.

The temporary no-limiter licence ends when polylens_device_connected reaches 50 series. Check that observed count at the start of the next release wave.