docs: analog phones (ATAs) set up by hand; the ATA plan in the roadmap

README.md

@@ -26,6 +26,9 @@ A fully open source, self-hosted business phone system. Bring your own SIP trunk
 ## Wanted
 
 - More SIP providers: **Telnyx, Flowroute and Twilio** first.
+- Analog phone adapters set up automatically: **Grandstream HT802 V2** first (two ports, a dial
+  plan from your numbers), then Cisco ATA 191/192 and SPA112/122. Today they're set up by hand
+  ([how](docs/admin-guide/ata.md)).
 - SMS (built for voip.ms, parked until wanted).
 - Push notifications, so phone apps ring in the background.
 - Text-to-speech prompts, recording prompts by phone, a queue wallboard, Polycom phones.
@@ -34,7 +37,8 @@ A fully open source, self-hosted business phone system. Bring your own SIP trunk
 
 - [Admin guide](docs/admin-guide/README.md): install, [voip.ms setup](docs/admin-guide/voipms.md),
   [network and firewall](docs/admin-guide/network.md), [E911 and recording law](docs/admin-guide/legal.md),
-  [troubleshooting](docs/admin-guide/troubleshooting.md), [updating and backups](docs/admin-guide/maintenance.md)
+  [troubleshooting](docs/admin-guide/troubleshooting.md), [updating and backups](docs/admin-guide/maintenance.md),
+  [analog phones (ATAs)](docs/admin-guide/ata.md)
 - [Changelog](CHANGELOG.md)
 - [Ready for v1 checklist](docs/v1-checklist.md)
 - Writing code (human or AI): start with [`AGENTS.md`](AGENTS.md), then the