Panasonic Launches Line of Desktop SIP Phones

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Panasonic Launches Line of Desktop SIP Phones

Today, Panasonic launched a line of new desktop SIP phones pitting them against Aastra, Cisco, Polycom, snom, and other SIP desktop phone vendors. I spoke with Panasonic to learn more about their new offering. First, it's worth pointing out that Panasonic already has a desktop phone called the KX-TGP550, which also supports DECT, allowing up to 6 DECT phones to register to the desktop phone. Panasonic mentioned this particular product is useful in small businesses and gave the example of a salon which needs a desktop phone at the receptionist desk, but the hair stylists and salon owner can have a DECT phone on their belt clip and freely roam, while still taking calls. It even supports up to 3 simultaneous conversations all handled by the desktop phone. Certainly, Panasonic is renowned for their consumer DECT offerings and is considered the industry-leader in that area, so the KX-TGP550 is an interesting solution that marries consumer DECT technology with enterprise SIP/VoIP capabilities.

Now, Panasonic is launching traditional SIP desktop phones without the embedded DECT feature. The new models, which are called the UT Series include KX-UT136-B, KX-UT133-B, KX-UT123-B and KX-UT113-B. All of them are certified by BroadSoft on Broadworks and Digium's Asterisk and all support Power over Ethernet and HD voice/wideband audio (G.722). The KX-UT123-B and KX-UT113-B are their basic low-cost models. The KX-UT113-B is a single Ethernet port phone with no backlight designed for kitchenettes or lobbies, while the KX-UT123-B has a backlight and two Ethernet ports. Both basic models have a 3-line display.

                                             KX-UT113-B phone

                                             KX-UT123-B phone

The top models, KX-UT136-B and KX-UT133-B, sport 24 programmable feature/functionality keys. The KX-UT136-B displays a six-line backlit graphical LCD and 2 Ethernet ports, while the KX-UT133-B offers a three-line backlit graphical LCD and 2 Ethernet ports.
                                             KX-UT136-B phone

Panasonic told me all of their SIP phones are "eco-friendly" and will go into a sleep mode, turning off the backlight display and drawing less than 1 watt of power. Impressive! On an incoming call or an outbound call it returns to full power and the backlight turns back on.

Features include:
  • Easy configuration with extensive provisioning options
  • High Definition audio (G.722 codec) for wideband voice quality on all models
  • Power over Ethernet (PoE) in all models
  • Electric Hook Switch (EHS) for Plantronics headsets
  • LCD Display Monochrome Graphical
  • LCD Size 242 x 109 pixels – 6 line;  242 x 55 pixels – 3 lines
  • LCD Contrast 6 levels
  • LCD Backlight On/Auto/Off None
  • Audio Codec G.711, G.722, G.726, G.729a
  • Handset, Speaker, Headset Volume 8 levels (includes echo cancellation and distortion prevention) 15 levels
  • Ringtones 27
  • Ringer Volume 6 levels + Off
  • Phone Book Entries 500 or 100 (depending on model) - each with 5 numbers
  • Call Log Entries 30 incoming calls + 30 outgoing calls
  • Conferencing 3 parties (within terminal – multi-party dependent on server)
  • SIP Accounts 4 or 2 (depends on model)
  • VLAN (802.1q)
  • QoS (DiffServ)
  • Plug & Play Configuration Server based configuration, TR-069, BroadSoft® Device Management Server
  • Manual Configuration Internal web Configurator, Local (LCD based) network configuration
Panasonic offers a two-year limited warranty on all UT Series models. The MSRP ranges from $119 to $269 depending on the model. To check out Panasonic's line of SIP telephones, here over to

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