SKU: 53848080334

Yealink SIP-T42U IP Phone

$64.76 $71.95
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  • USA
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Yealink SIP-T42U IP PhoneYealink T42U VoIP SIP Phone (SIP T42U) The SIP T42U IP phone is a feature rich business tool for excellent communications and extended functionality. Coming with plentiful built in programmable keys, this 12 line IP phone guarantees the enhanced productivity. United Yealink Optima HD Voice technology and wideband codec of Opus, the T42U awards you the superb audio quality and crystal clear voice communications. The phone feels quicker and more

Yealink T42U VoIP/SIP Phone (SIP-T42U)

The SIP-T42U IP phone is a feature-rich business tool for excellent communications and extended functionality. Coming with plentiful built-in programmable keys, this 12-line IP phone guarantees the enhanced productivity. United Yealink Optima HD Voice technology and wideband codec of Opus, the T42U awards you the superb audio quality and crystal-clear voice communications.

The phone feels quicker and more responsive when performing call features. Moreover, the T42U puts dual USB ports in a phone that makes Bluetooth, Wi-Fi, USB headset and USB recording come true, and you can use any two of them freely according to your needs. The Yealink new T4U series offers the same elegant appearance as the T4 line, but with improvements for greater interoperability and better collaboration.

Accompanied by two USB ports, the T42U is your right-hand man in the office that makes Bluetooth, Wi-Fi, USB headset and USB recording possible, and you can use any two of them freely according to your needs to enrich phone features. Meanwhile, the phone has three pages of flexible buttons that can be easily programmed with 15 paperless DSS keys at most.

Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance. Being a totally open, highly versatile audio codec, Opus, is designed to perform a higher HD audio quality than other wideband codecs in a high network bandwidth; However, if your current network quality is poor, Opus can provide you with a better audio quality than other narrowband codecs. And its hearing aid compatible (HAC) handset helps the person who is with hearing loss to hear the voice more clearly.

Yealink T4U series supports efficient provisioning and effortless mass deployment with Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism to help you realize the Zero Touch Provisioning without any complex manual settings, which makes the T4U series simple to deploy, easy to maintain and upgrade. Furthermore, a unified firmware and auto-p template that applies to all T4U phone models, saves even more time and costs for businesses, as well as simplifies the management and maintenance.

Yealink T4U series uses SIP over Transport Layer Security (TLS/SSL), which is the latest network security technology. It’s also compatible with leading soft switch suppliers, such as 3CX, Broadsoft Broadworks. Moreover, it is carried with dual fimrware images that gives you a enterprise-level protection to avoid bricking your system once upgrade failed.

The phone works via PoE (Power over Ethernet) with a traditional power adapter also available (sold seperately).

Features

  • Up to 12 SIP accounts
  • 2.7" 192x64-pixel Graphical LCD with Backlight
  • Dual Firmware Images
  • 2x USB Port
  • Opus* codec support
  • T4U Auto-P Template Unified
  • T4U Firmware Unified
  • PoE Support
  • Dual-port Gigabit Ethernet
  • USB Headset and EHS support
  • Wi-Fi via WF40/WF50
  • Bluetooth via BT40/41
  • Stand with 2 Adjustable Angles
  • Wall Mountable
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 53848080334

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4.4 ★★★★★
Based on 5 reviews
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Product Reviews
N
Verified Purchase
Nala Nose Best 🐾
Natrona Heights, US
★★★★★ 3
Well-designed and quiet, but didn’t keep my dog interested
Color: Blue
My dog was interested in this at first, but she would lose interest after a few minutes and move on. I do like that it’s quieter than the hard plastic ball toys, and the charge lasts well. The internal charging port that twists closed is also a nice design feature. That said, it will occasionally turn on by itself, which can be a little surprising. Overall, it has some nice features, but it just didn’t keep my dog engaged.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
O
Verified Purchase
OhCaptainMyCaptain
Whiting, US
★★★★★ 1
Good - for a few hours
Color: Blue, Color: Blue
Concept is fantastic. Dog loved it. Problem is that she figured out how to open it within two hours of play. The robot core, alas, did not survive. In the photo, you see a tooth went cleanly into the button and that was the end of the toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
L
laruex3
Los Angeles, US
★★★★★ 5
The most engaging interactive toy for my Border Collie
Color: Orange, Color: Orange
My Border Collie is not a big ball player. He prefers tug type games and actually gives me a look like, “Are you stupid? I’m not going to keep bringing that to you if all you’re going to do is throw it away again!” after about the third time I throw a ball for him to fetch. However, I can only play tug so often and I need him to be entertained and engaged as much as possible. I got him a smaller, non-padded ball like this hoping he would like the interactive aspect of it. He did- he actually loved it! But it was loud, hard on his teeth, would come apart periodically, and he kept hitting the off button when playing with it. It drove me crazy. This one is so much better overall! The soft outer shell is not only easier on his teeth, but it is super resilient to biting and chewing. He actually likes to carry this thing around in his mouth while it’s bouncing and vibrating. The three modes give great flexibility for different kinds of play. His favorite is the most active mode: the ball reacts to touch and practically bounces itself across the floor when he touches it with his paw or mouth. I will point out that in one of the modes, I thought the battery wasn’t charged or there was a motor issue because it’s very subdued movement; however, it’s just set up as a low-key option. Be sure to check out each mode to see which works best for your dog at different times. I can’t say enough about this ball- I have been so pleasantly surprised by how much he loves it. The rechargeable feature is super convenient, it’s big enough to not get stuck under the couch, and it automatically shuts off based on whichever mode it’s set on. As the owner of a busy, super-smart dog who needs to be engaged in mental and physical activity, I think this all is worth every penny. In fact, I’m buying one for a friend who has a Border Collie pup with lots of energy to burn! I highly recommend this toy- it’s the most engaging toy I’ve found that Finn will play with on his own.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
D
Verified Purchase
Dani
Bozeman, US
★★★★★ 2
Not as Smart or Interactive as You Think it Will Be
Color: Blue
This is an honest review from a schnauzer owner who has has wanted this cheerble ball for their dog for more than one year. I finally bougI finally bought this toy and both me and my dog are disappointed. The settings are...i would say dog friendly as I'd assumed a dog ball would be. What I mean by that is, for example: the calm play setting is muuch too calm. Super light puffs of energy, like a battery is dying. And the playful setting is scary, alarmingly so. The intervals in between are too long. The ball does not bounce. So they just have settings all wrong. The size is good for a large dog only. Do not buy if you have a small to medium dog. I even think the material is okay. I've only had it for a few days so I can't even speak to how the material holds up. Really hoping to love this ball for my dog. It was not the distraction I was hoping it would be so I could work from home while my dog had fun. I'm hoping this can help someone else who's been pining over it. Essentially, it's a $35-$50 well made weighted ball that moves occasionally.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
G
Verified Purchase
Gromper
Los Angeles, US
★★★★★ 5
Perfect Size for Tiny Dogs
Style: 14" Length Sport Launcher, Style: 14" Length Sport Launcher
Excellent size for tiny dogs who can only manage the tiny tennis balls. The launcher is easy to use, even for my 8 year old. It’s pretty much revolutionized ball time for the dogs and the kids - they actually like taking him out to play fetch now. It’s super light but still lets you toss the balls a lot farther than just throwing it. Great value for your money and it’s helps strong for weeks of repeated used, super durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026

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