# Yealink Phones — Valleywide (VWP)

**Last updated:** 2026-04-22 (Howard)
**YMCS portal:** <https://us.ymcs.yealink.com/manager/sip-product/sipManage>
**Customer account:** Valleywide Plastering (VWP)
**Public WAN IP (site):** 98.168.18.21

All 16 devices are Yealink **SIP-T54W** color IP phones (OUI `805e0c` and `44dbd2`, both Yealink). Added to the YMCS device management platform on 2026-04-22.

## Inventory

### Already provisioned / seen online previously (5)

Phones in this group have reached a SIP registrar at least once. Currently showing Offline in YMCS — possibly powered off, unplugged, or waiting on next provisioning fetch.

| # | MAC | YMCS Label | Last-seen Device IP | Private IP | Notes |
|---|---|---|---|---|---|
| 1 | `805e0cdd755b` | SIP-T54W *(default)* | 96.86.0.70 | 192.168.0.130 | Needs user / extension assignment |
| 2 | `805e0cdd6d01` | `214-ValleyWidePlastering` | 96.86.0.70 | 192.168.0.140 | Extension 214 — user TBD |
| 3 | `44dbd26f6a36` | SIP-T54W *(default)* | 96.86.0.75 | 192.168.0.54 | Different registrar IP than the .70 group — verify intended target |
| 4 | `805e0c78958e` | SIP-T54W *(default)* | 96.86.0.45 | 192.168.0.222 | Different registrar IP than the .70 group — verify intended target |
| 5 | `805e0cdd71b1` | `Reception` | 96.86.0.70 | 192.168.0.17 | Front desk phone |

### Pending (11)

Added to the YMCS inventory but have not yet contacted the provisioning server. These either haven't been plugged in, aren't getting DHCP, or are blocked from reaching the YMCS service URL.

| # | MAC |
|---|---|
| 6 | `805e0cdd73bd` |
| 7 | `805e0c6aa890` |
| 8 | `805e0cdd6cf9` |
| 9 | `805e0cdd7453` |
| 10 | `805e0cdd73b7` |
| 11 | `805e0cdd7559` |
| 12 | `805e0cdd6cf5` |
| 13 | `805e0cdd6fb5` |
| 14 | `805e0cdd7441` |
| 15 | `805e0cdd6509` |
| 16 | `805e0c7896b8` |

## Observations / open items

- **Two different last-seen registrar IPs** among the Offline group: `96.86.0.70` (three phones + reception), `96.86.0.75` (one phone), `96.86.0.45` (one phone). Confirm all three are legitimate (PBX failover / different tenant routing) vs. stale config on the outlier phones.
- **Only two phones are labelled** (`214-ValleyWidePlastering`, `Reception`). Label the remaining 14 in YMCS with extension + user once assigned — makes diagnostic triage much faster.
- **Private IPs spread across `192.168.0.0/24`** (`.17`, `.54`, `.130`, `.140`, `.222`) — confirm these are DHCP reservations or static assignments on the UDM so the phone subnet is stable.
- **Pending phones need first-boot provisioning** — once plugged in on VWP's LAN with internet, they should auto-fetch config from YMCS. If any stay Pending after being plugged in, check: DHCP option 66 / DNS for YMCS reachability, firewall egress to `*.yealink.com`, and whether the phone firmware supports current YMCS handshake.

## Reference

- Yealink YMCS (US): <https://us.ymcs.yealink.com/manager/sip-product/sipManage>
- OUI check: `805e0c`, `44dbd2` — both Yealink Network Technology Co., Ltd.
- Related: `clients/valleywide/README.md` (infrastructure overview), `clients/valleywide/session-logs/2026-04-22-hp-server-nvram-corruption-emergency.md`
