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KX-UT123-B Panasonic SIP Phone


KX-UT123-B Panasonic IP phone: 2 SIP accounts; 3 line display for features and for CID/dialed number; 3-way conference call support.

SKU: KX-UT123-B Category:


This is a used Panasonic KX-UT123-B SIP phone in very good condition. It was used very little in an office. Works great. There are 2 available, but one does not have a power adapter. There are available power adapters on eBay for $7.00.





The entry model is compact and easy to install in small spaces.

  • 2 SIP accounts
  • 3 line display for features and for CID/dialed number
  • 3-way conference call support


KX-UT123-B Specifications:

Display LCD Display Monochrome Graphical
LCD Size 242 x 55 pixels – 3 lines
LCD Contrast 6 levels
LCD Backlight KX-UT123 On/Auto/Off
KX-UT113 N/A
Install Options Wall Mount KX-A432 (optional)
Power Adaptor KX-A239 (optional)
Audio Features Handset, Speaker, Headset Volume 8 levels (includes echo cancellation and distortion prevention)
Ringtones 32
Ringer Volume 6 levels + Off
Headset Port 2.5 mm
Audio Codec G.711a-law / G.711µ-law / G.722 (wideband) / G.729a / G.726 (32K)
HD Voice Yes
Speaker Phone Yes
Software Features Phone Book (Entries) KX-UT123 500
KX-UT113 100
Call Log Entries 30 incoming calls + 30 outgoing calls
Conferencing 3 parties (within terminal – multi-party dependent on server)
Music on Hold Supplied by Host Service (PBX / SIP Server)
IP Features SIP Accounts 2
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
Configuration Plug & Play Configuration Server based configuration, TR-069, Panasonic Redirect Server
Manual Configuration Internal web Configurator, Local (LCD based) network configuration
Interface Ethernet Ports KX-UT123 2
KX-UT113 1
Ethernet Interface 10/100 Mbps
PoE (Power over Ethernet) Yes
Power Consumption PoE Standby: 1.8 W (ECO mode off), 1.3 W (ECO mode on)
Talking: 2 W (ECO mode off), 1.5 W (ECO mode on)
AC Adaptor Standby: 1.6 W (ECO mode off), 1 W (ECO mode on)
Talking: 2 W (ECO mode off), 1.5 W (ECO mode on)
Max 6 W
Operating Environment 0 °C – 40 °C (32 °F – 104 °F)
Dimensions (Width x Depth x Height; handset on cradle, stand attached) 205 mm x 160 mm x 170 mm
Weight (with handset, handset cord and stand) KX-UT123 870 g
KX-UT113 860 g

Additional information

Weight 2.7 lbs
Dimensions 9 × 8 × 5 in





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