| Product type | IP mobile phone |
| Product colour | Grey |
| Handset type | Wired handset |
| Keypad illumination | Yes |
| Mounting | Desk/Wall |
| DECT connectable | Yes |
| Dual-Tone Multi-Frequency (DTMF) modes | In-band, Out-of band, SIP info |
| Lines quantity | 8 lines |
| Caller ID | Yes |
| Phonebook capacity | 1000 entries |
| Number of VoIP accounts | 12 |
| Answering machine | Yes |
| Call waiting | Yes |
| Speed dialling | Yes |
| Call hold | Yes |
| Call forwarding | Yes |
| Conference call | Yes |
| Redialing | Yes |
| Do not disturb function | Yes |
| Call park | Yes |
| Call pick up | Yes |
| Anonymous call | Yes |
| Anonymous call rejection | Yes |
| Full duplex | Yes |
| Short Message Service (SMS) | Yes |
| Phonebook sharing | Yes |
| Call return | Yes |
| Call transfer | Yes |
| Call history | Yes |
| Integrated voicemail | Yes |
| Volume control | Buttons |
| Number of programmable keys | 8 |
| Touchscreen | No |
| Display | LCD |
| Display diagonal | 9.4 cm (3.7") |
| Display resolution | 360 x 160 pixels |
| Backlight display | Yes |
| Front camera | No |
| Speakerphone | Yes |
| Microphone mute | Yes |
| Voice codecs | G.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC |
| Voice activity detection | Yes |
| Adaptive jitter buffers | Yes |
| Automatic gain control | Yes |
| Comfort noise generation (CNG) | Yes |
| Packet loss concealment (PLC) | Yes |
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Bluetooth | No |
| Ethernet LAN interface type | Gigabit Ethernet |
| Supported network protocols | FTP/TFTP/HTTP/HTTPS |
| Quality of Service (QoS) support | Yes |
| Security algorithms | AES, HTTPS, SIPS |
| Networking standards | IEEE 802.1p, IEEE 802.1x, IEEE 802.3af |
| USB 2.0 ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 2 |
| RJ-9 ports quantity | 2 |
| DC-in jack | Yes |
| Power over Ethernet (PoE) | Yes |
| AC adapter input voltage | 100 - 240 V |
| AC adapter output voltage | 5 V |
| AC adapter output current | 1.2 A |
| Power consumption (typical) | 2.3 W |
| Operating temperature (T-T) | 0 - 40 °C |
| Operating relative humidity (H-H) | 10 - 95% |
| Width | 212 mm |
| Depth | 210.6 mm |
| Height | 174.5 mm |
| Number of handles included | 1 pc(s) |
| Quick start guide | Yes |
| Number of DECT wireless handsets | 4 |
| Cables included | LAN (RJ-45) |
| Description |
| Yealink SIP-T53. Product type: IP mobile phone, Product colour: Grey, Handset type: Wired handset. Dual-Tone Multi-Frequency (DTMF) modes: In-band, Out-of band, SIP info. Lines quantity: 8 lines, Phonebook capacity: 1000 entries. Volume control: Buttons. Display: LCD, Display diagonal: 9.4 cm (3.7"), Display resolution: 360 x 160 pixels |
