Equipped with powerful chip, the T3 series owns a stronger computing ability and more upgraded functions, which ensures a higher productivity and smoother office experience. Due to great performance, T3 series is capable to extend more services for different business demands.
| Brand | Yealink |
| SIP Phone | T31P |
| Line | 2 Line |
| LCD Display | 2.3” 132×64-pixel graphical LCD with backlight |
| Acoustic Fence™ technology | No |
| Expansion module support | No |
| HD/wideband voice technology | HD |
| Full duplex speakerphone | Yes |
| Open APIs | No |
| USB call recording | No |
| Voice quality monitoring | No |
| USB port | No |
| Ethernet port | 2x 10/100 |
| PoE Support | Yes |
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