Selecting a conference telephone largely depends on the size of the space where it will be used. In the following tables, this is indicated by the room size and number/reception radius of the phone's microphones. The microphones pickup angle (360° omnidirectional or 120° unidirectional) can also matter. However, larger spaces can be accommodated by external microphones (bought separately) that enhance the phone's reception range.
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| -- |  |  |  -- |
| Audio conference parties | 5 | 10 | 5 |
| HD audio | Yes | ||
| Screen size/Resolution | 4" / 480x800 | 5" / 720x1280 | 4"/ 480x800 |
| Touch Screen/Color | Yes / Yes | ||
| USB Ports | 1 Type-C 2.0 | 1 Type-C 2.0/ 1 Type-A 2.0 | 1 Type-C 2.0 |
Bluetooth | Yes – 4.2 | ||
| Wi-Fi | Yes | ||
| Ethernet ports / Gigabit | 1 / No (100 Mbps max) | 1 / No (100 Mbps) | N/A – wired connectivity comes from DECT base station |
| Room size | Small-medium | Medium-large | Small-medium |
Microphones / Radius | 7 total (1 for noise reduction) / 20 feet | 13 total (1 for noise reduction) / 20 feet | 6 / 20 feet |
| Mic pickup angle | 360° | 360° | 360° |
Extended mic radius | 40 feet with CPW25 Bluetooth microphone | Bluetooth microphone | |
| Noise reduction | Yes | ||
| POE | Yes | No* | No* |
| Statics resistance | Yes | ||
Mobile phone support | Yes – via Bluetooth | Yes – via Bluetooth/USB | Yes – via Bluetooth |
| Call recording | Yes – USB drive/internal storage | ||
* The Yealink CP935W is a battery-powered DECT (wireless) phone that pairs with the Yealink W70B, W80, or W90B base stations for a wireless coverage of up to 165 feet indoors. The phone itself is cordless and does not support POE (the base station it connects to does support POE.) The battery provides up to 15-20 hours of talk time and 75-160 hours of standby time, depending on if Wi-Fi or DECT connectivity is used.
| -- |  | ||
| -- | Trio 8300 | Trio 8800 | Trio C60 |
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| Audio conference parties | 5 | 8 | 8 |
| HD audio | Yes | ||
| Screen size/Resolution | 3.5” LED | 5” / 720x1280 | 5" / 720x1280 |
| Touch Screen/Color | No / No | Yes / Yes | Yes / Yes |
| USB ports | 1 Type-A 2.0 | 1 Type-A 2.0 / 1 micro USB 2.0 | 1 Type-A 2.0 / 1 micro USB 2.0 |
| Bluetooth | Yes – 4.0 | Yes – 4.0 | Yes – 5.0 |
| Wi-Fi | Yes | ||
| Ethernet ports / Gigabit | 1 / Yes | 2 / Yes | 2 / Yes |
| Room size | Small | Medium | Large |
| Microphones / Radius | 3 / 12 feet | 3 / 20 feet | 3 / 20 feet |
| Mic pickup angle | 120° | 120° | 360° |
| Expansion Microphone | Available | Available | Available |
| Noise suppression | Yes | ||
| POE | Yes | Yes | Yes |
| Statics resistance | Yes | ||
| Mobile phone support | Yes – via Bluetooth | ||
| Call recording | Yes – to USB drive | ||