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Yealink 8-Line Dual-Port Ethernet 3.7-inch LCD VoIP Phone - SIP-T53

Yealink 8-Line Dual-Port Ethernet 3.7-inch LCD VoIP Phone - SIP-T53

Part Number: SIP-T53
Manufacturer: Yealink

Condition: Refurbished

Weight: 5.0 lbs

Availability: In stock

Regular price $98.44
Regular price Sale price $98.44
Shipping calculated at checkout.
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Yealink SIP-T53 8-Line Business VoIP Desk Phone

The Yealink SIP-T53 is a mid-range business IP phone featuring an 8-line capacity, 3.7-inch adjustable LCD display, and dual Gigabit Ethernet ports. Built for productive office communication, it supports Yealink Optima HD Voice and is compatible with all major SIP PBX platforms.

Key Features

  • 8 SIP lines with up to 8 concurrent calls
  • 3.7-inch 360 x 160 pixel adjustable backlit LCD
  • Dual Gigabit Ethernet ports (PC passthrough supported)
  • Yealink Optima HD Voice with wideband audio
  • USB port for headset or Bluetooth/Wi-Fi dongle

Product Specifications

  • Part Number: SIP-T53
  • Manufacturer: Yealink
  • OEM Status: OEM
  • Model: SIP-T53
  • SIP Lines: 8
  • Display: 3.7-inch LCD, 360 x 160 px
  • Ethernet: Dual Gigabit (PoE supported)
  • Power: PoE (802.3af) or AC adapter

Communication Specifications

  • Audio Codecs: G.722, G.711 (A/µ-law), G.729AB, G.726, G.723.1, iLBC, Opus
  • Protocols: SIP 2.0, TCP, UDP, TLS, SRTP
  • DTMF: In-band, Out-of-band (RFC 2833), SIP INFO
  • QoS: 802.1p/Q VLAN, DSCP
  • Provisioning: Auto-provisioning via HTTP/HTTPS/TFTP/FTP

Use Cases

  • Office desk phone for mid-level staff requiring multi-line call handling
  • Call center agents needing HD audio and programmable keys
  • Unified communications deployments on 3CX, FreePBX, or Cisco UCM
  • PoE-powered installations eliminating separate power adapters

Compatibility

  • Compatible with Asterisk, FreePBX, 3CX, BroadSoft, Cisco UCM, and most SIP PBX platforms
  • Managed via Yealink Device Management Platform (YDMP) or YMCS
  • Supports Yealink EXP43 expansion module for additional line keys

Frequently Asked Questions

Does the SIP-T53 support PoE?
Yes — it supports IEEE 802.3af PoE, eliminating the need for a separate power adapter when connected to a PoE switch.
Can I add an expansion module?
Yes — the SIP-T53 supports the Yealink EXP43 expansion module for additional programmable keys.
Is Bluetooth built in?
Bluetooth is not built in, but can be added via a Yealink BT41 USB Bluetooth dongle.

The Yealink SIP-T53 delivers professional-grade VoIP performance for modern business communication. Order today and equip your team with reliable, HD-quality desk phones.

Frequently Asked Questions

Why do I see an incorrect image for this item?

Images may be representative of the product model. For Refurbished items, the actual unit may differ in appearance from the image shown.

Specifications, part number, condition and included accessories are stated on this page.

What do you mean by term Refurbished?

Refurbished means a used computer part or device that has been cleaned, checked, and repaired to make sure it works properly again. Unlike regular second-hand items, refurbished products go through testing and fixing so they can perform like new.

How many days does it take to ship goods to customers?

All orders are processed within 1-2 business days. Orders placed on weekends or public holidays will be processed on the next business day. For more info visit shipping policy.

What is your return policy?

We offer a 30-day return policy subject to the terms and conditions described in our Refund Policy. Restocking fees may apply to eligible non-faulty returns. Kindly take a look at our Return Policy page.

Do you deliver my ordered items in their original retail box?

For Brand New items, you will receive them in their original retail box. For Refurbished items, you will receive them in a Brown Box or Bulk Packaging.

Do your printers come with ink cartridges?

Refurbished printers do not come with ink cartridges or toners.