The SIP-T40P is a feature-rich SIP phone for enhancing daily business processes and operations. With a revolutionary new design that supports flexible and secure provisioning (the phone utilizes industry-standard encryption protocols for users to provision and perform software upgrades both in-house and remotely), this advanced IP phone is intuitively designed with ease of use in mind. With programmable keys, the SIP-T40P boasts extensive productivity-enhancing features such as Power over Ethernet (PoE) support, superb high definition (HD) sound quality and a rich visual experience.


Revolutionarily new design

Yealink Optima HD voice

2.3" 132x64-pixel graphical LCD with backlight

Up to 3 SIP accounts

Paper label free design

PoE support

Headset, EHS support

Integrated stand with 2 adjustable angles

Wall mountable

Simple, flexible and secure provisioning options


Audio Features

HD voice: HD handset, HD speaker

Wideband codec: G.722

Narrowband codec: G.711(A/μ),G.729AB, G.726

DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO

Full-duplex hands-free speakerphone with AEC


Phone Features

3 VoIP accounts

One-touch speed dial, redial

Call forward, call waiting

Call transfer, call hold

Call return, group listening, SMS

Mute, auto answer, DND

3-way conference call

Direct IP call without SIP proxy

Ring tone selection/import/delete

Hotline, emergency call

Set date time manually or automatically

Dial Plan

XML Browser

Action URL/URI



Local phonebook up to 1000 entries

Black list

XML/LDAP remote phonebook

Intelligent search method

Phonebook search/import/export

Call history: dialed/received/missed/forwarded

IP-PBX Features

Busy Lamp Field (BLF)

Bridged Line Appearance(BLA)

Anonymous call, anonymous call rejection


Message Waiting Indicator (MWI)

Voice mail

Call park, call pickup

Intercom, paging

Music on hold

Call recording

Display and Indicator

2.3" 132x64-pixel graphical LCD with backlight

LED for call and message waiting indication

Dual-color (red or green) illuminated LEDs for

line status information

Intuitive user interface with icons and soft keys

National language selection

Caller ID with name, number

Feature keys

3 line keys with LED

5 features keys: message, headset, mute,

redial, hands-free speakerphone

4 context-sensitive “soft” keys

6 navigation keys

2 volume control keys

Mute key

Headset key

Hands-free speakerphone key


2xRJ45 10/100M Ethernet ports

1xRJ9 (4P4C) handset port

1xRJ9 (4P4C) headset port

1XRJ12 (6P6C) EHS port

>Power over Ethernet (IEEE 802.3af), Class 2

Other Physical Features

Stand with 2 adjustable angles

Wall mountable

External universal AC adapter (optional)

AC 100~240V input and DC 5V/600mA output

Power consumption (PSU): 1.05-3.23W

Power consumption (PoE): 1.7-3.2W



Operating humidity: 10~95%

Operating temperature: -10~50°C

Package Features

Qty/CTN: 5 PCS

N.W/CTN: 5.7 kg

G.W/CTN: 6.4 kg

Giftbox size: 246mm*223mm*120mm

Carton Meas: 620mm*256mm*233mm


Configuration: browser/phone/auto-provision

Auto provision via FTP/TFTP/HTTP/HTTPS

for mass deploy

Auto-provision with PnP

BroadSoft device management

Zero-sp-touch TR-069

Phone lock for personal privacy protection

Reset to factory, reboot

Package tracing export, system log

Network and Security

SIP v1 (RFC2543), v2 (RFC3261)

Call server redundancy supported

NAT transverse: STUN mode

Proxy mode and peer-to-peer SIP link mode

IP assignment: static/DHCP

HTTP/HTTPS web server

Time and date synchronization using SNTP


QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS


SRTP for voice

Transport Layer Security (TLS)

HTTPS certificate manager

AES encryption for configuration file

Digest authentication using MD5/MD5-sess

OpenVPN, IEEE802.1X


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Yealink Sip-T40P

  • Brand: Yealink
  • Product Code: Sip-T40P
  • Availability: In Stock
  • $112.99

Available Options

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Tags: voip, phone, yealink, sip