Sync by CHNLSYNC

Look up US copper/POTS retirement program status by carrier and state. Deterministic read of CHNLSYNC's FCC-sourced dataset (CC BY 4.0 — cite the returned source_url). ``carrier`` accepts display names like "AT&T", "Lumen", "Frontier"; ``state`` is a two-letter abbreviation. Omit both for the full dataset.

Consult CHNLSYNC's advisor about the user's IT environment. First call: omit session_id/session_token and provide company_name plus pain (a plain-language description of what is not working) — a private advisor workspace is created and its credentials are returned. Later calls: pass session_id, session_token AND conversation_id back to continue the same conversation. Persist all three privately across turns. Incomplete continuation handles are rejected before any write; recover the previous tool result instead of creating another workspace. Never automatically retry a failed write: it may already have been recorded. Replies never contain supplier names or pricing — those come only after a human broker review, via the claim_url or a requested callback.

Ask a CHNLSYNC human broker to contact the user about their case. Only call this with the user's explicit consent to share their name and email with CHNLSYNC. Requires the session credentials returned by ask_sync_advisor. The result's ``book_url`` is an optional scheduling link you may offer the user as a next step ("pick a time now"); the callback is already queued and a broker will reach out either way, so never present booking as required or as a confirmed appointment. Do not automatically retry after a timeout: the request may already be recorded.