| Model | T58V | T58A | T56A | T54S | T52S |
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| Download | Datasheet | Datasheet | Datasheet | Datasheet | Datasheet |
| LCD | 7" capacitive touch screen |
7" capacitive touch screen |
7" capacitive touch screen |
4.3" color LCD | 2.8" color LCD |
| Resolution | 1024 x 600 | 1024 x 600 | 1024 x 600 | 480 x 272 | 320 x 240 |
| LCD Backlight | √ | √ | √ | √ | √ |
| Line | 16 | 16 | 16 | 16 | 12 |
| PoE | √ | √ | √ | √ | √ |
| GigE | √ | √ | √ | √ | √ |
| Wall Mounting | √ | √ | √ | √ | √ |
| Foot Stand | 1 adjustable angle | 1 adjustable angle | 2 adjustable angles | 2 adjustable angles | 2 adjustable angles |
| USB Port (2.0 compliant) | 2 | 2 | 1 | 1 | 1 |
| Ethernet Port | Dual-port Gigabit Ethernet | Dual-port Gigabit Ethernet | Dual-port Gigabit Ethernet | Dual-port Gigabit Ethernet | Dual-port Gigabit Ethernet |
| Handset Port (RJ-9) | √ | √ | √ | √ | √ |
| Headset Port (RJ-9) | √ | √ | √ | √ | √ |
| External Yealink AC Adapter (optional) | AC 100~240V input and DC 5V/2A output | AC 100~240V input and DC 5V/2A output | AC 100~240V input and DC 5V/2A output | AC 100~240V input and DC 5V/2A output | AC 100~240V input and DC 5V/2A output |
| Line Key | 0 | 0 | 0 | 10 | 8 |
| Memory Key | 27 | 27 | 27 | 27 (3 pages of 9 keys) | 21 (3 pages of 7 keys) |
| Yealink EXP50 Expansion Module (Accessory, purchased separately) |
√ | √ | √ | √ | √ |
| Yealink EXP40 Expansion Module (Accessory, purchased separately) |
x | x | x | x | x |
| Yealink EXP20 Expansion Module (Accessory, purchased separately) |
X | X | X | X | X |
| Yealink EHS36 Wireless Headset Adapter (Accessory, purchased separately) |
X | X | X | X | X |
| Yealink YHS32 Headset (Accessory, purchased separately) |
√ | √ | √ | √ | √ |
| Yealink Bluetooth Adapter BT40 (Accessory, purchased separately) |
X | X | X | X | X |
| Yealink Wi-Fi Adapter WF40 (Accessory, purchased separately) |
X | X | X | √ | √ |
| USB Recording | √ | √ | √ | √ | √ |
| 3-way Conferencing | √ | √ | √ | √ | √ |
| HD Voice | HD Speaker HD Handset |
HD Speaker HD Handset |
HD Speaker HD Handset |
HD Speaker HD Handset |
HD Speaker HD Handset |
| Wide-band Codecs | Opus, G.722, G.722.1, G.722.1C | Opus, G.722, G.722.1, G.722.1C | Opus, G.722, G.722.1, G.722.1C | Opus, G.722 | Opus, G.722 |
| Narrow-band Codecs | Opus,G.711 (A/µ), G.723, G.726, G.729AB, iLBC | Opus,G.711 (A/µ), G.723, G.726, G.729AB, iLBC | Opus,G.711 (A/µ), G.723, G.726, G.729AB, iLBC | G.711 (A/µ), G.723, G.723.1, G.726, G.729AB, iLBC |
G.711 (A/µ), G.723, G.723.1, G.726, G.729AB, iLBC |
| LCD Type | Adjustable | Adjustable | Fixed | Fixed | Fixed |
| Operating System | Android 5.1.1 | Android 5.1.1 | Android 5.1.1 | Linux | Linux |
| Built-in Bluetooth | √ | √ | √ | √ | √ |
| Built-in Wi-Fi | 2.4G | 2.4G | 2.4G | X | X |
| USB Headset (Accessory, purchased separately) |
√ | √ | √ | √ | √ |
| Camera | √ | √ (With CAM50, purchased separately) |
X | X | X |
| Video Resolution | 720p@30fps | 720p@30fps | X | X | X |
| Video Codecs | H.264HP, H.264,VP8 | H.264HP, H.264,VP8 | X | X | X |
| 3-way Video Conferencing | √ | √ | X | X | X |
| 5-way video/audio mixed conferencing | √ | √ | X | X | X |
| HDMI | X | X | X | X | X |
