Can this work with Microsoft Teams?

Dear Customer, It does not. Best Regards, Flytec Computers.

Cannot get to power on even with using a power adapter why?

Make sure you are using correct power adapter/ make sure it’s authentic and power adapter says “Yealink” otherwise it’s a cheap knockoff

can we uas 3 units as intercom omly , no outsidt teleco lines used ?

Not directly however you could do it by taking an unused computer and installing a copy of freepbx then setting it up as an isolated exchange with no intertie to the phone system. All you need to do then is have the computer and each of the phones connected to the same network. Youll be able to call between phones and even ring all phones from one. Could conference multiple phones together... Lots of possibilities if you want to be enough of a geek to build your own tiny phone company. I actually do this at home but I have added an outside phone number as well. We can intercom, conference, and transfer calls just like an office phone system. Can even auto forward calls to my cellphone after 3 rings. It's free except for the cost of my outside line from a SIP trunking service.

Does the phone still require batteries if its PoE?

It never uses batteries- Poe means power over Ethernet cable and you must have a switch that gives power over the cable / otherwise there is a power adapter you can buy separately as an accessory……no Yealink phones include a power adapter upon purchase FYI

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Yealink IP Phone SIP-T31P

Product ID: 362563252

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Details

Brand
Yealink
Colour
Black
Telephone type
VoIP
Number of batteries
1 Lithium Ion
Material
Plastic
Power source
Electrical

🎧HD voice with noise filter

📺2.3" 132x64 backlit display

🔗Dual Port 10/100M Ethernet Switch

Description

📞 Elevate your desk game with Yealink’s sleek, smart SIP-T31P!

IMMERSIVE HD AUDIO - Experience pristine calls with HD handset, speakers, and intelligent noise filtering.
CRYSTAL CLEAR VISUALS - Large backlit LCD ensures effortless navigation and call management.
SEAMLESS CONNECTIVITY - Dual Ethernet ports with PoE support streamline your workspace setup.
FLEXIBLE SPACE SAVVY - Adjustable multi-angle stand plus wall-mount option fits any modern office vibe.
MULTI ACCOUNT EFFICIENCY - Supports 2 VoIP accounts and 5-channel local conferencing for dynamic communication.

The Yealink SIP-T31P is a professional-grade IP phone featuring a sharp 2.3" backlit display, dual 10/100M Ethernet ports with Power over Ethernet, and HD voice technology enhanced by intelligent noise filtering. Supporting two VoIP accounts and local conferencing, it offers versatile connectivity and crystal-clear communication, all housed in a flexible design with adjustable stand and wall-mount options—perfect for the productivity-driven modern workspace.

Specifications

Recording Capacity	16 minutes
Conference Call Capability	2 way
Is there Caller ID	No
Multiline Operation	Multi-Line Operation
Dialer Type	Single Keypad
Answering System Type	Digital
Number of Batteries	1 Lithium Ion batteries required.
Power Source	Corded Electric
Item Weight	0.6 Kilograms
Item Dimensions	8.46 x 4.02 x 8.54 inches
Material Type	Plastic
Color	Black

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