Yealink SIP T23G - Desktop VoIP phone

The Yealink SIP-T23G VoIP phone is the basic management model of the SIP-T2 series. It is equipped with a backlit 2.8 ”graphic LCD display with a resolution of 132 × 64 pixels. HD Voice technology ensures high quality transmitted sound. User comfort is ensured by the Caller ID functions, the possibility of setting your own ringtone and much more.

The phone offers three SIP accounts and a dual 1Gb / s switch. Thanks to two-color diodes, the three programmable buttons allow you to monitor the status of the line (BLF / BLA) and assign them your own label on the display. There is a large phonebook for 1000 contacts, support for Broadsoft phonebooks, as well as an XML directory. Integration with major IP PBX systems (3CX, Asterisk, Broadsoft Broadworks, etc.) supports the deployment of the phone in state-of-the-art network infrastructures.

The Yealink SIP-T23G supports PoE power, so you won’t find an AC adapter in its package. You can easily attach the phone to a wall or attach a headset to it.

Like other Yealink phones in the SIP-T series, the SIP-T23G also has Czech display localization and web management.

! ATTENTION! The Yealink SIP-T23G supports PoE power. The package does not include the mains adapter!
PoE = Power over Ethernet – this is the use of a data cable leading to the IP phone and its power supply You can order the network adapter separately.

Product description:
■ Backlit 2.8 ″ LCD display
■ Dual 1Gb / s Ethernet port
■ 3 SIP accounts
■ 3 programmable buttons
■ HD Voice
■ PoE power supply support
■ IPv6 support
■ Czech localization

Data interfaces: Ethernet
Ethernet: 2 x 10/100/1000 Mbps
Network services: Fixed IP, DHCP, PPPoE
QoS: DiffServ / ToS / VLAN
Display type: Black and white
Display – size: LCD graphic 132 × 64 pixels
Display – backlit: Yes
VoIP standards: SIPv2
Codec support: G.711, G.722, G.723.1, G.726, G.729AB, Dynamic Jitter Buffer
Peer-to-Peer Mode: Yes
Number of SIP accounts: 3
Hands-free calling: Yes
Headset connection option: Yes, RJ9 connector
Ring and call volume settings: Yes
Number of ringtones: 7
Possibility to record your own ringtones: Yes
Date and time display: Yes
Local phone book: 1000 contacts
Remote phonebooks: XML, LDAP, Broadsoft
Number of programmable buttons: 3
History – list of incoming calls: 100
History – list of outgoing calls: 100
History – list of missed calls: 100
Security: SRTP, TLS (HTTPS, SIPS), login password, encrypted config. files
Voice Activity Detection (VAD): Yes
Comfort Noise Generator (CNG): Yes
Call functions: Divert, Hold, transfer, 3-way conferencing
Caller ID: Yes
Calling plan: Yes
Call waiting (CW): Yes
Automatic redial: Yes
Mute: Yes
SMS: Yes
Open API: XML application, Action URL, Active URI, Push XML
LED status indication: Yes
Firmware upgrade: Yes
Automatic configuration: Yes
IPv6 support: Yes
Expansion module support: No
Power adapter: 5V DC / 600mA
The adapter is not included
PoE (IEEE 802.3af): Yes
Management: Web, keyboard, car. configuration
Diagnostics: trace, syslog
Dimensions: 185 x 200 x 90 mm
Weight: 770 g
Possibility of wall mounting: Yes
Manuals: English instructions
Warranty: 2 years

Headset connection:
You can connect professional headsets to your phone:
– Plantronics “HW” series via U-10P-S reduction cable (eg models HW251 / A, HW261 / A, etc.)
– Connect the Jabra using reduction cables: GN-88001-99 / GN-88011-99 / GN-8800-00-25 / GN-8800-01-06 (eg model BIZ-1500-NC-MONO)


The product requires professional installation.
Installation and commissioning of the product requires a certain level of knowledge of IT issues, so we recommend entrusting them to qualified professionals.


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