Excellent call quality, Great Phone application interface
The KX-UT670 is the executive Android ( 2.2 ) IP phone in Panasonic's line of KX-UTXXX models for the hosted/open source market. This phone has no hard keys. Like some of the other Android based VoIP desk phones we've seen - the Grandstream GXV3175 and the CloudTC Glass 1000 come to mind - the KX-UT670 relies solely on its touch screen for user input.
Impressive and cool looking 7 inch touchscreen phone
The Panasonic KX-UT670 demonstrates how using an open platform like Android enables useful third party apps like TouchDown and LightTouch Reception. Besides the ability to customize and develop apps for the KX-UT670, the ability to control up to 16 PTZ cameras certainly gives this phone some niche applications such as a security desk or even an executive's home-based IP phone used when working from home.
A full featured IP deskphone in the $40-$50 range
The GXP 1405 is lightweight and compact. Depending on what you're used to, the hardware quality may leave something to be desired. For example, the base and handset could feel a bit hollow to you if you're accustomed to the thicker plastic found in Polycoms.
Very good sound quality
Where the KX-UT113 succeeds is where it actually matters: voice quality. The speaker phone is nice and crisp. It renders both speech and IVR menus quite well. It's no Sennheiser, but it's leagues ahead of the execrable speaker that came with our pre-production UT136. The distortion control kept everything smooth sailing even when we blasted music through one phone line to try to overdrive the phone's speaker.
Changes made in web admin portal pushed to phone immediately
Speakerphone quality has also been noticeably improved. When we reviewed this phone with firmware version 00.0032, we found a distracting amount of white noise whenever we switched a call to speakerphone. We're no longer experiencing this problem with firmware version 01.133.
An excellent VoIP Phone
Well, this Cisco phone is one of the top model in Cisco business series desk phones, so its no brainier that should work just fine. I have done my homework before purchasing it and I am very pleased with the quality of the calls. The phone is very easy to configure since it has a WEB API to work with. Compare this with 7xxx series of Cisco phone where it is almost impossible to configure the phone without Cisco call manager, this is piece a cake to work with.
Great work phone
The form factor of these phones are both visually appealing and physically comfortable to work with on a daily basis. We are using them for a Ring Central account and the setup was a breeze - even for the non-technical people. I would make one technical recommendation to purchasers: these do not come with a power supply. If you are a medium sized or larger office (not just 1 or 2 people), then I would recommend purchasing a POE switch to power the phones instead of the $15 power brick.
Excellent audio, quality Intuitive to use
The Cisco SPA504G is a very good phone. With HD voice supported, it delivers excellent voice quality in an intuitive and well-made piece of hardware. The OnSIP team is thrilled to see another manufacturer taking steps to bring HD voice to midrange phones that won't cost customers an arm and a leg.
Cannot recommend Grandstream
We used this and several other Grandstream voice and video phones for about a year before giving up on them. Grandstream phones are about the lowest cost IP phones available. They will work as a basic voip phone, for dialing and receiving calls. That is about all I can say that is positive about them. If you want to use ALL the latest VoIP and PBX features, Grandstream will leave you wanting. The firmware is buggy and features often don't work correctly.
Very affordable, Feature-packed
We were impressed with this phone, which is no surprise considering that we also liked the GXP 2020 when we reviewed it last year. The GXP 2100 does just about everything comparable VoIP phones from competing manufacturers can do at a fraction of the price.
Excellent audio performance, Very user-friendly
The IP 6000 looks almost identical to the older IP 4000 model, a phone that was released almost 10 years ago. I would have much rather preferred the redesign given to some of the other Soundstation phones - the IP 5000 and IP 7000 look sleek! The IP 6000 closely resembles a tripod, with a microphone at each of the three endpoints to ensure equal sensitivity to sound input from all directions (~4m microphone pickup range). A large speaker sits at the top for the ringer and audio output.
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