Telephony is all about hearing, and being heard.

High quality, clear audio is vital for effective telephone communications. Using high quality, wideband codecs is necessary, but not sufficient to guarantee clear, intelligible conversations. The whole signal path must be designed with quality in mind.

Moreover, the KX-UT series supports the wideband G.722 codec on all models, but that isn’t enough. In order to provide “best in class” audio quality, Panasonic has designed the entire SIP terminal range with enhanced loudspeakers and carefully crafted acoustic chambers to ensure a wide frequency response, while advanced filter design ensures that every word is reproduced faithfully. The outcome is clear, natural sounding voice reproduction, even under poor network conditions.

This excellent audio quality is maintained whether you use the built-in handset, the high quality speakerphone or an external wireless headset such as the Plantronics Voyager range – the KX-UT series ensures fewer misheard calls, less repetition and better communication.

Panasonic KX-UT series SIP terminals – Make yourself heard.

For more information on the Panasonic KX-UT SIP Phone Terminal range, please visit the respective models’ product page:

Panasonic KX-UT SIP Phones Comparison Table






LCD Display Monochrome Graphical Greyscale Graphical Colour 256k
LCD Size 242 x 55 pixels – 3 lines 242 x 109 pixels – 6 lines 4.4 inch 7 inch touch
LCD Contrast 6 levels No
LCD Backlight None On/Off/Auto 15/Auto
HD Video No 720p
Install Options
Desk Mount Tilt No Yes – 2 positions
Wall Mount KX-A432 (optional) KX-A433 (optional) KX-A434 (optional)
Power Adaptor KX-A239 (optional) KX-A422 (optional)
Ethernet Ports 1 – 10/100 2 – 10/100 2 – 10/100/1000
Power Over Ethernet Yes
Bluetooth No Yes Optional
Audio Features
Handset, Speaker, Headset Voume 8 levels (includes echo cancellation and distortion prevention) 15 levels
Ringtones 32
Ringer Volume 6 levels + Off 7 levels + Off
Headset Port 2.5mm
Electronic Hook Switch Control Port None 3.5mm Plantronics Compatible
Audio Codec G.711, G.722, G.726, G.729a G.711, G.722, G.729a
Soft Keys Yes – 4 Yes – Screen
Programmable Keys 0 24 24
( 3 pages of 8 )
( 4 pages of 6 )
0-9, *, # Keys Yes Yes – Screen Keys
Nav & Cancel Keys Yes On Screen + Menu Keys
Software Features
Phone Book (Entries) 100 – 5 numbers each 500 – 5 numbers each Depends on Memory**
Call Log Entries None 30 incoming + 30 outgoing 100 in + 100 out
Conferencing 3 parties with terminal – multi party dependent on server
XML XML Application Support from Q1 2012
Music On Hold Supplied by host service (PBX/SIP Server)
IP Features
SIP Accounts 2 4 6
SIP Compatibility RFC 3261 Standard SIP Server, Asterisk, Broadsoft, Panasonic SIP PBX
IP Version IPv4
DHCP Client Yes
SNTP Client Yes
VLAN (802.1q) Yes
QoS (DiffServ) Yes
802.1x No Yes
Plug & Play Config. Server based configuration, TR-069, Panasonic Redirect Server
Manual Config. Internal with Configurator, Local (LCD based) network configuration

* – Preliminary Specifications

** – Up to 500 connected to NS1000