Tough Middling: Snom D735 IP Phone Review



    Recently, we briefly introduced you to the history and assortment of the German company Snom, which more than 20 years ago launched the world's first VoIP phone and since then has been holding the leading position among developers and manufacturers of integrated solutions for IP telephony. Then we did an overview of the flagship models of the two lines of wire phones - D385 and D785 . And today we will talk about the middle class model from the 7xx series - Snom D735, which will soon go into production, and we got a test copy for review.

    Design


    The phone case is made of traditional Snom high-quality matte dark or white plastic, pleasant to the touch and scratch resistant. The stand allows you to position the phone at two different tilt angles, 46 ° and 28 °.





    The width of the phone is 205 mm, the depth is 185 mm, and the height depends on the use of the stand and ranges from 40 to 220 mm. The phone weighs 450 grams, plus its stand weighs 120 grams.

    The streamlined tube fits comfortably in the hand; there is no discomfort during long conversations.



    The “End call” button is electronic, which greatly increases its reliability and durability.



    One of the key elements of the interface is a 2.7-inch high-resolution color display. Unlike the flagship D785, - the D735 does not have a separate screen for programmable buttons, its functions are performed by the main display. Its size is enough to comfortably manipulate the lists of subscribers in the notebook, calling, missed, and dialed numbers, configure the operating system of the device.





    There are four buttons below the display, the functions of which vary depending on the contents of the display. And on the sides are eight physical programmable buttons that can total up to 32 functions. By default, several of them are already configured for conference calling, call forwarding, silent mode, and call lists. Additionally, these buttons themselves are highlighted in red or green, depending on the situation.



    A proximity sensor is located on the front panel of the D735, which notices a hand brought to the keyboard, turns on the display backlight and displays a list of current functions of the programmable buttons on it. According to the manufacturer, such a solution is used for the first time in history, none of the manufacturers have used an proximity sensor in desktop telephones. How useful is this solution? The fact is that the display area is limited, and when displaying the signatures of all the function keys, the screen is cluttered with information. Naturally, this is inconvenient and not too aesthetically pleasing. In normal mode, on the phone screen you will see a minimum of information (easy-to-understand icons and abbreviated signatures to them), but it’s worth raising your hand as the signatures “unfold” and are displayed in their entirety - one does not have to guess what the abbreviations mean.

    In standby mode:



    As soon as the sensor has detected the approach of the hand:



    By experience, we found out that the sensor works if you put your hand / face / object at a distance of about 9-13 cm.

    All buttons have a short stroke and a distinct click, their location on the panel is familiar, and the notation is intuitive. Next to the block of digital buttons there are such useful and necessary buttons as “Phonebook”, “Settings”, “Transfer call” and “Call hold”. And on the sides of the five-way navigation joystick, the D735 has the enter and cancel buttons, Do Not Disturb, and Messages. The numeric keypad has only the English alphabet, you have to "guess" what Russian letters should be on the number keys. However, this problem, as well as some under-translated menu items, may be the result of hasty localization of the test instance and will be eliminated in serial devices.



    The phone has an LED indication of missed calls and messages, as well as colored lights on the Mute, Speakerphone and Headset buttons. There are no unexpected “modern” solutions in the interface, everything is familiar and clear, difficulties in mastering the device should not arise.





    Software


    The interface is translated into Russian. The cancel button does not go back a step, as one might assume, but completely resets the current action, you can lose the entered information during configuration. But this, as we said in the review of D385 and D785, is not a bug, but intentionally implemented behavior. To return to the previous menu level, you must use one of the four functional context-sensitive buttons below the screen.





    The list of subscribers in the notebook can contain 1000 numbers, there is a list of missed, received and dialed calls. The set of functions is fairly standard for any device of this class: call hold, auto redial, "unavailable" mode, and the like. The call forwarding is implemented in an interesting way, the end user will see the real number of the caller (for example, cellular), and not the internal number of the company secretary or another person who switched the call.

    With the D735, you can organize three-way conference calls.

    Sound and technology


    Snom is one of the few manufacturers that have their own audio laboratory and pay much attention to the sound quality in their devices. The handset is not a piece of plastic with a simple filling, but an acoustically optimized audio system, the design of which is designed for the best microphone and speaker performance. The technology for suppressing extraneous noise allows you to communicate comfortably, even if colleagues talk to you one and a half meters away. Speakerphone provides good interlocutor audibility and microphone sensitivity at a distance of about three meters.

    D735 Equipped with Two Gigabit Network Ports with PoE Power Technology, a full set of audio codecs and network protocols, such as SIP and DHPC, secure connections via HTTPS, VPN and similar technologies implemented in this phone are similar to other models of the company.





    The phone is equipped with a USB port, which allows you to use various accessories with it, from headsets to WiFi sticks to connect to a wireless network. The device also supports wireless Bluetooth headsets.



    You can connect up to three additional D7 expansion modules to your phone . On each side of the large display there are 18 additional keys that can be programmed similarly to the function keys on the phone itself.

    You can set up the phone both through the menu of the device itself and through the web-interface. And if the company orders a large number of devices, from 300 pieces, then Snom can modify the appearance of phones and menus to fit the customer’s corporate identity.

    The warranty period for servicing phones is three years, but, according to the experience of the company and its customers, the devices last much longer.

    And finally, a small announcement.

    Today, the mobility that a comfortable and compact headset with a long range and high-quality noise reduction can give is very important to users. Therefore, we plan to devote the next review on the iptelefon blog not to the phone, but to the wireless DECT-headset. Follow the news!

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