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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🔌 Power your calls, empower your productivity!

YEALINK HD VOICE TECHNOLOGY - Experience crystal-clear calls that boost professional communication.
CRISP 2 3 BACKLIT LCD DISPLAY - Stay informed with a sharp, easy-to-read screen even in low light.
TWO PORT 10 100 M ETHERNET SWITCH - Expand your network without extra hardware clutter.
POWER OVER ETHERNET PO E ENABLED - Simplify your setup with single-cable power and data transfer.
DUAL SIP ACCOUNTS DOUBLE EFFICIENCY - Manage two lines effortlessly and never miss a call.

The Yealink Power Supply for VOIP Phones supports a wide range of Yealink models, delivering reliable power with PoE support and a user-friendly 2.3” backlit LCD. Featuring dual SIP account capability, a two-port Ethernet switch, and HD voice technology, it’s designed to streamline professional communication and enhance office efficiency.

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Brand	Yealink
Manufacturer	Yealink
Model	SIP-T31P
Model Name	SIP-T31P
Product Dimensions	21.5 x 10.2 x 21.7 cm; 907.18 g
Batteries	1 Lithium Ion batteries required.
Item model number	SIP-T31P
RAM Size	512 GB
Number of items	1
Standing screen display size	2.3 Inches
Display Type	LCD
Power Source	Corded Electric
Batteries Included	No
Batteries Required	No
Recording Capacity	16 Minutes
Total USB ports	2
Material	Plastic
Manufacturer	Yealink
Country of Origin	China
Item Weight	907 g

Yealink Sip T31P, Poe Supported Dual Line Entry Level Corded Landline Phone IP Phone, Black

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