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Yealink SIP-T28P na 1-Handset 6-Line Landline Telephone (Power supply not included - PS5V1200US)

4.2 out of 5 stars 32 customer reviews
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  • 320x160 graphic LCD with 4-level grayscales
  • BLF/BLA, SMS, Voicemail, Intercom
  • 48 Keys including 16 programmable keys
  • 6 VoIP accounts, Broadsoft/Avaya/Asterisk validated
  • HD Voice; HD Codec, HD Handset, HD Speaker
6 new from $162.00 4 used from $43.99 1 refurbished from $138.99
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Product Description

Product Description

Yealink T28P Executive IP Phone with POE

From the Manufacturer

Yealink T28P Executive IP Phone with POE

Product Information

Technical Details

Brand Name Yealink
Item Weight 3.1 pounds
Product Dimensions 10 x 9.5 x 4 inches
Item model number SIP-T28P
Color Black
Manufacturer Part Number SIP-T28P

Additional Information

ASIN B002D10C34
Customer Reviews
4.2 out of 5 stars 32 customer reviews

4.2 out of 5 stars
Best Sellers Rank #60,718 in Office Products (See top 100)
#156 in Office Products > Office Electronics > Telephones & Accessories > VoIP > Phones
Shipping Weight 3.1 pounds
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available September 14, 2004

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Technical Details

  • Caller ID
  • Speakerphone

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

We use Yealink phones in our office and recommend it quite often to our voiSip phone service customers.

They all have a nice, heavy, solid feel. Everything fits and feels tight.

The screens are easy to read with a simple layout.

The speakers in the handset and speakerphone are high quality and sound very nice.

The operation is responsive and works great with all the features of our IP PBX systems... music on hold, transfer, conference, voicemail, etc.

There are several similar models... here's what you need to know about each.

NOTE: If it has a "P" in the model name, like T22P vs T22, then it supports PoE (Power over Ethernet). Which can be handy in some environments.

The T18/T18P is the lowest price model, but has no LCD display, so it has limited potential.

The T20/T20P has a basic display, 2 line buttons, and works great as a single endpoint phone for business or residential use.

The T22/T22P is really the best choice for a standard extension phone though. It has a slightly larger screen than the T20, 3 line buttons, and 4 context sensitive soft buttons. The soft buttons are very handy when used with an IP PBX system. But probably not important in a stand-alone situation.

The T26/T26P is the same as the T22, but adds 10 programmable buttons/lights for speed dial or extension/line status. It also supports a "sidecar" expansion module if necessary. Great phone for a receptionist or someone who needs to monitor line status... or just needs a lot of speed dial buttons.

The T28/T28P is like the T26, but with a larger screen and 6 call status buttons/lights instead of 3.
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Verified Purchase
The Yealink T-28P is a horrible phone. I have 9 of these for my office, purchased over about a two year period, and about 3/4 of them have issues.

Some of them randomly make a loud tone in the middle of a call, as if someone had pushed a number button and held it down for about 30 seconds. I called my voip provider (phonebooth.com) and was told that Yealinks do that all the time (Thanks for recommending them, by the way, phonebooth!).

Now a couple of them have had all (ALL) of the buttons fail. That means you push any button (number, control, line, volume, up, down, etc.) and nothing happens. All controls are dead. They still have dial tone, so that's nice. Would be much better if you could actually use the phone though.

I've tried to contact Yealink - no reply, no support, nothing.

Seriously, buy something else.
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By Alex on May 26, 2013
Verified Purchase
Great device. Highly configurable. Supports most SIP functionality including BLF. Using in production call center. 100+ per day. Occasional restarts (rare). Voice quality is ok but I had to replace a headset on one unit.
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Verified Purchase
I purchased these phones because they are responsive and very lasting. I have clients who could upgrade to better but the attitude is " If it ain't broken, why fix it." I keep going back to what work when presenting clients with options and past experiences, and this is the phone for me and my clients.
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This phone is fantastic in THEORY. It looks great, has wonderful features, is nice looking. But we have about a dozen of these in our office and they are absolutely horrible. The sound quality is good and then suddenly will be horrible....like you're making an overseas call in 1951. At any given time there are several that have numerous issues. It's so discouraging that some staff have just stopped complaining about it. It's embarrassing because sometimes people on the other end of the phone can't hear us. Our last phone system lasted 22 years and was working fine but was just no longer compatible with new systems. This one is less than a year old and it has been nothing but trouble. We are very disappointed.
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I got this phone (Yealink T28p) for use with my FreePBX (Asterisk) system to transition away from softphones. The sound quality of this phone is outstanding and clear.
The phone was very simple to install, and the web interface is easy to use. The DSS keys support BLF for monitoring other extensions. I use this with a headset, and the sound is great there too. I would highly recommend this phone for someone who is looking for a simple yet professional deskphone for their sip phone system (like Asterisk). I have used it for 5 days now, and it works reliably without any problems. Far FAR easier to setup than Cisco 7960 phones, and more reliable than the 7960 in my experience (in an Asterisk SIP environment).

Pros:
*Very simple, intuitive, straight-forward install. I think it supports tftp provisioning, but that is not required. I used the web interface.
*Excellent sound quality and clarity.
*BLFs work with other extensions.
*The phone just worked. Within 5 minutes I was done.
*Headset support is nice. (RJ9)
*Message lamp just worked (voicemail indicator), even with multiple SIP accounts.
*power supply included (but also supports POE).
*I like the fixed conference, hold, trans, mute, and redial buttons. The message and headset buttons light up.
*LCD screen is big and bright. The screen backlight turns off automatically (can customize the length of time before it turns off).

Cons/Needs Improvement:
*The manual does a fair (but not great) job of really explaining the features, sometimes relying on the titles of the feature to explain what it actually does. For the most part the features are clear and you can intuit their meaning, but a more verbose manual would be appreciated.
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