Phone numbers
Read sending-number identity, quality, and tier state.
GET /v1/phone_numbers returns the Linq lines attached
to your account and their current channel state. Sends select among eligible
lines.
The quality field preserves the token reported by the channel. Empty means no
rating has been reported. An unfamiliar non-empty token remains visible without
a quality_band; a recognized token carries both. Treat quality_band as
Linq’s provisional placement, not a replacement for the original token.
The messaging-tier token is also reported verbatim. This API version does not publish a numeric ceiling, so do not infer one from a token or hard-code a vendor table.