Wireless IP phone. Wi-Fi phones. Distinctive features of WiFi SIP phones

Wireless technologies are becoming more and more relevant every day not only for offices, but also for residential buildings and apartments. After all, they allow you to make the user more mobile, increase the comfort of his communication during working or non-working hours.

WiFi phone turns a classic telephone into a convenient, compact and mobile device, which you can easily take with you to another room, bathroom or kitchen, even go out onto the site or to the entrance.

Advantages of WiFi phones

A WiFi phone is especially convenient for a private home with a large living space. The use of WiFi data transmission technology allows you to provide a high-quality signal to all areas without interruptions and interruptions in communication, as can be the case with a conventional radiotelephone.

A WiFi phone is indispensable for offices of large and medium-sized companies, where a lot of computer and other equipment is installed, and therefore extra wires cause great inconvenience. In addition, a WiFi phone is practical for the employee himself, as it allows him to communicate with clients or partners while moving freely around the office.

It is worth noting that the WiFi phone is easy to install and does not require additional communications - communication and operation are carried out using wireless technology. This significantly reduces installation and operating costs, and also makes it possible to install this type of telephone in premises where there is no wired local area network.

Almost every WiFi phone also supports a standard wired connection, and therefore, if necessary, can be used in this way. Many devices are equipped with dozens of additional functions - support for multiple lines, the ability to work in networks with different communication standards, control, call forwarding and holding, etc.

WiFi phone in store website

If you need a modern WiFi phone, you can easily find a suitable model in our online store. The range includes devices from the world's leading manufacturers, in different price ranges. Therefore, no matter what is your priority - financial benefit or functionality, you can always choose a model in accordance with your requirements and capabilities.

In addition, our specialists will help you choose not only a WiFi phone, but also accessories for it.

IP telephone and VoIP telephony

What is an IP phone? This is a telephone device that uses VoIP technology and a digital IP network for voice transmission. Therefore, these devices are also often called VoIP phones or sip phones(named after the most common connection establishment protocol). In the modern world, the Internet penetrates into all areas of our lives, significantly simplifying and reducing the cost of all processes of information transfer. Ordinary traditional telephone communication is no exception and fades into the background. She is increasingly being pushed out IP telephony for office and home, using technology VoIP (V oice- o ver- IP). This is a new generation technology that uses the Internet instead of the usual wired line to transmit voice. Data is sent over the Internet, rather than through traditional telephone wires, which guarantees high quality communications. And, thanks to this, calling another continent is as easy as calling a neighboring house, and not at all expensive. The use of VoIP gateways allows you to connect analog and digital networks, thanks to which IP telephony users can talk to subscribers not only of IP PBX, but also of any analog PBX. To conduct conversations using IP telephony, you can use both IP phones and software softphones installed on computers. The latter, strictly speaking, are not IP phones, since when the computer is turned off, softphones can no longer make or receive calls.

Advantages of IP telephony

In addition to the usual functions of traditional telephone communication(speakerphone, function buttons and speed dial keys), IP telephony has much wider capabilities:

• low tariffs IP telephony for making long distance and international calls;
• independence from location, IP the phone can work from anywhere in the world;
• adding new ones telephone numbers within the framework of an existing connection;
• subscriber presence indication(out of office, do not disturb modes);
• comfortable and flexible setup various options redirects;
• voice mail with indication of incoming messages;
• redirect - call transfer no answer to call;
• secure calls from signal encryption;
• sending and receiving text messages;
• holding conferences.

However, it must be taken into account that these functions can be used in full only when constructing the entire corporate network based on equipment from the same manufacturer, since different vendors implement additional capabilities in different ways.

IP phone functions

IP phones, when integrated with a mini PBX, provide the user with a number of useful functions. Here are the most popular ones:

• Autoresponder
• Call transfer
• Call waiting
• Call forwarding
• Programmable buttons
• Phone book
• Multilateral conference
• Speed ​​dialing
• Do Not Disturb Mode
• Call hold

Let us reveal in more detail what these functions provide:

• Autoresponder. Delivery to the caller voice message and the ability to record voice messages from him.
• Call transfer. The ability to transfer an incoming call to another internal telephone number, to a landline number or to a mobile subscriber.
• Waiting for a call. If an internal subscriber makes a call, but at the same time a call comes in, the caller will hear short beeps, but if the called subscriber has call waiting service installed, the caller will hear long beeps as if the called number was free. In this case, the called subscriber can put his call on hold and switch to the incoming call, and then continue the first conversation.
• Call forwarding. The function of redirecting an incoming call to another extension. There are several forwarding options.
  • Unconditional forwarding. All calls are sent to the specified number in any case.
  • Forwarding on a busy signal. If busy of this subscriber, the call is forwarded to a pre-programmed number.
  • Forwarding on no response. Calls are redirected if the subscriber does not answer within a specified time.
• Programmable buttons. These buttons allow you to program frequently used functions for quick access. For example, entering the menu, entering the address book, transfer, speed dialing and others.
• Phone book. Local and remote phone books allow you to save and edit subscriber phone numbers with their names or other identifying information.
• Multilateral conference. Depending on the IP phone and PBX models, this function allows you to combine three or more subscribers, both internal and external, into one conversation.
• Speed ​​dialing. The ability to dial a number from the phone’s memory by pressing a function button programmed for a given task in one touch.
• Do not disturb mode. In this mode, no calls come to the IP phone, and the subscriber calling it receives a DND (Do Not Disturb) tone.
• Call hold. When you receive a call during a call, you can put the current call on hold and answer the second call. In this case, the conversational part of the IP phone switches to the second subscriber, but the connection with the first subscriber is not broken, and you can return to the first conversation.

SIP phone selection options

For the right choice First, let's determine what parameters they differ in and what these parameters affect:

• Number of lines;
• Number of SIP accounts;
• Availability of display and its parameters;
• Interfaces connections:
• Number of Ethernet ports;
• Supports various protocols connection establishment ;
• Support network protocols;
• Opportunity wireless work;
• Availability of connector to connect headsets;
• Ways of eating.

Technical characteristics of SIP phones

TO technical specifications sip phones include:

• Number of lines. This is the number of simultaneous telephone conversations. Wireless IP Dect phones have the ability to simultaneously carry out conversations from different radio handsets through one base. In landline IP phones, if there are two or more lines, it is possible to put a conversation on hold and accept a call on the other line. The number of simultaneously supported conversations is especially important for SIP DECT phones, when each DECT wireless handset is assigned its own SIP number.
• Number of different SIP accounts(accounts). The account is registered with the SIP provider and contains two parts (like an e-mail): first the login itself, and then, after the @ icon, the server address. Several SIP accounts are an opportunity to work with several providers, which makes it possible to reduce communication costs in certain directions. As a rule, every account SIP corresponds to your phone number.
• Display options: color/monochrome, size, resolution, display languages. The required screen properties are determined by the tasks that a particular telephone device must solve. To make calls to several pre-programmed numbers, it is enough to have a single-color low-resolution display or even a phone without a display.
• Interfaces connections to local network: Ethernet, Wi-Fi, Bluetooth. Landline IP phones and IP dect phone bases are connected via a wired Ethernet interface using an RJ45 connector. Wireless IP phones - using Wi-Fi, BlueTooth protocols.
• Number of Ethernet ports. There can be two or one of these ports. If there are two Ethernet connectors in the device, it itself can serve as a router for connecting through it to a local network and also personal computer. Or, conversely, if the computer is already connected to the network, there is no need to install an additional switch. The RJ45 connector is removed from the computer and plugged into the device, and from it a wire with two RJ45 connectors is plugged into the computer.
• Support for connection establishment protocols VoIP: SIP, SIP v2, H.323, MGCP, etc. Most likely, you will need an IP phone with SIP support, since this is the most common protocol at this time. However, this point needs to be clarified, because your voip telephony service provider or office PBX may work with a different protocol, for example, H.323.
• Network protocol support: TCP/IP, DHCP, NAT, HTTP, HTTPS, FTP, etc. Support for certain protocols is necessary to implement the corresponding capabilities of IP telephony. For example, TCP/IP provides packet data transmission via the Internet; DHCP needed for automatic distribution of IP addresses to phones; NAT- for working with routers; FTP- for transferring files; HTTP- to obtain information from WEB sites, for example, weather forecasts; HTTPS- this is HTTP with data encryption;
• Possibility of wireless operation. IP phones can support the DECT protocol; in this case, the base is connected to the local network via an Ethernet port, and DECT radio handsets communicate with the base via a wireless protocol. It is also possible to connect the phones themselves to a local network using Wi-Fi and Bluetooth protocols.
• Availability of headset jack. This option allows you to use an IP phone with a headset, which not only provides improved sound quality, but also increases the efficiency of employees due to the use of their hands and the ability to do certain work during a conversation.
• Nutrition: local from network adapter or remote by Ethernet networks using PoE (Power-over-Ethernet) technology. The ability to power over Ethernet (PoE) eliminates the need for each IP device to have its own power adapter and 220 V socket for it.

IP phone manufacturers

Due to the widespread use of IP telephony, a wide variety of IP phones have appeared on the telecommunications VoIP equipment market. The best devices now are from the following manufacturers:

• Cisco
• Avaya

If Cisco and Avaya products are more designed for corporate use in large and medium-sized businesses, then Panasonic, Yealink, Gigaset and Grandstream also produce budget models that are perfect for small businesses or for the home.

USB SIP phones and IP devices with Ethernet connection

In order to make calls using an IP phone, it must be connected to the Internet. This can be done via usb port computer or Ethernet LAN connector. USB phone is a device that connects to a computer with softphone software installed on it, such as Skype, Viber, Net2Phone, etc., and replaces headphones and a microphone. This is convenient for voice communication between computer network users. If the device supports the SIP protocol, then such a usb sip phone can be used for calls using SIP telephony, which will be discussed below. A USB phone is not capable of making and receiving calls on its own without a computer, and, in principle, if you have a headset, it can be completely replaced by software.

An IP phone with a connection to a local network via an Ethernet connector is a full-featured device capable of making and receiving calls via an IP network independently, without a computer. Such a device looks the same as a regular wired analog device. It supports all the functions of traditional telephony, as well as additional IP telephony capabilities. The device can have two Ethernet ports and, in this case, also serve as a router for connecting a computer.

IP phone with 2 Ethernet ports - Grandstream GXP-1620:

Wired and wireless IP phone

Wireless IP phone Gigaset A510 IP:

SIP protocol support

One of the important parameters of the IP phone is SIP protocol support, which is currently the main VoIP telephony protocol. What kind of protocol is this - SIP?

In order to start and end an IP telephone session, a certain standard is needed, which are the H.323, MGCP, SIP protocols. The widespread use of voip telephony began with the approval of the recommendations of the Session Initiation Protocol, translated as “session establishment protocol”. The SIP protocol was the basis of Voice-over-IP. In addition to IP telephony, the SIP protocol also includes the exchange of multimedia data: audio and video conferencing, instant messaging, online games. The protocol describes how an endpoint can request to initiate a connection with another client on the same network, but possibly over a long distance, using its unique SIP account. SIP defines the way subscribers negotiate to open data channels based on other protocols that will then be used to transmit information.

Advantages of the SIP protocol:

• Mobility SIP telephony subscribers are very high, you can travel around the world while maintaining your SIP number;
• Maximum extensibility and compatibility with old versions;
• Compound happens as much as possible fast;
• Clear addressing, like e-mail;
• Simple open protocol;
• Traffic savings Internet.

Currently, the SIP protocol is the most common, and devices that support it are called SIP phones. For some manufacturers, even the model name itself contains the abbreviation SIP.

SIP phone Yealink SIP-T21 E2:

IP phone with headset

IP phone with headset - Panasonic KX-HDV130RU:

PoE technology for IP phones

Power Technology P over- o ver- E thernet (PoE) transmits power to IP phones over a local network via Ethernet. Models with PoE support do not require a power supply and a separate 220 V socket to connect the adapter. Most IP devices have this capability. However, please understand that if you connect to the device additional devices, for example, a console with additional speed dial buttons, power from the local network will not be enough and you will have to connect an adapter.

IP phone powered by Ethernet line - Yealink SIP-T21P E2:

Manufacturers and brands of IP phones

Below are described best manufacturers budget IP phones with their advantages. We hope that the recommendations below will help you make the best choice of IP phone.

Panasonic IP phones

The advantages of the products of the Japanese company Panasonic are:

• High sound quality;
• Reliability;
• Possibility of use all basic functions VoIP SIP telephony even in the budget segment.

Panasonic IP phones can be divided into two groups:

1. Wireless, convenient for mobile use within the enterprise or home
2. Stationary, for office and home

Panasonic KX-TGP500 and KX-TGP600 are wireless VoIP DECT solutions. TGP600 is a further development of the “500th” model. With a price difference of less than 10%, the “six hundredth” has a number of advantages:

• number of connected cordless handsets - 8 (instead of 6)
• number of simultaneous conversations - 8 (versus 6)
• increased talk time on dect handset up to 11 hours (for TGP500 up to 5 hours)
• color display (rather than single color)
• ability to connect a Panasonic KX-TPA65 landline DECT telephone
• using Panasonic KX-A406CE DECT repeaters to increase range

It should be noted that the KX-TGP600 can work with eight SIP accounts and have eight simultaneous conversations, while other manufacturers usually have the second parameter less than the first, and it may turn out that when you try to call all the lines are busy. When choosing a wireless IP device, based on price/quality ratio and functionality, the recommended model is Panasonic KX-TGP600. You can select a headset for this model.

Photo of the radiotelephone Panasonic KX-TGP-600 with SIP support.

Panasonic KX-HDV100RUB And KX-HDV130RUB- new models from Panasonic, but already received good feedback buyers. Panasonic has done the seemingly impossible: it has created fully functional, high-quality devices at such a low price. These models work well with both conventional hardware IP PBXs and software IP PBX Asterisk, and can also be used by IP operators, thanks to Broadsoft DMS (Broadsoft Device Management System) certification. And to get the maximum sound quality provided by HD Sonic technology, we recommend using these devices with a specialized headset Accutone TB7RJ-AKR-U10PS, designed specifically for the HDV series.

The budget IP phone Panasonic KX-HDV100 is not inferior to more expensive products from other brands in terms of communication quality and VoIP functions; it works with one SIP line and one Ethernet line. The “older” model KX-HDV130 is only a third more expensive, but it features support for two SIP accounts, two Internet lines, a speakerphone (speakerphone) and the ability to power over Ethernet (PoE). Externally, both models look exactly the same, with the exception of a headset jack and two Ethernet ports on the HDV130 instead of one on the HDV100.Each of the models Available in two colors: white and black.

Panasonic KX-HDV100RU White:

Yealink IP phones

One of the leading suppliers of IP phones on the Russian market is the Chinese company Yealink Network Technology, whose focus is entirely focused on IP solutions in the field of telecommunications. The company produces convenient, functional and easy-to-use IP devices. The advantages of Yealink IP phones are:

• good ergonomics;
• Supports a wide range of protocols establishing communication, transmitting information, compressing voice traffic;
• Wide Compatibility with leading IP PBX manufacturers;
• Competitive price.

An example is the entry-level device SIP-T19 ​​E2. It works with one SIP account and in terms of technical characteristics is an approximate analogue of the Panasonic KX-HDV100RU. The dimensions are slightly larger than the HDV100, and the ergonomics are slightly better.

If you need an inexpensive IP phone with several SIP accounts, then you can select it from the table below.

Budget line Yealink Yealink IP phones of the SIP-T series show the best results in sound quality when using the Accutone TM7RJ-AKR-U10-PS headset, and are suitable for the W52P

Gigaset IP phones

The German company Gigaset from Munich is one of the leading manufacturers of telecommunications equipment. The company presents innovative solutions in the field of traditional and IP telephony for offices and home use. Gigaset has launched a successful line of SIP DECT devices on the market. The main features and advantages of Gigaset IP phones are:

• Free calls worldwide between Gigaset IP phones via the network Gigaset.net;
• Opportunity to work with digital lines SIP protocol and analog line;
• Access to information online services(weather forecast, RSS feeds);
• View mailbox e-mail;
• Vibration alert.

with answering machine and support for three simultaneous lines - 2 SIP and one analog:

Grandstream IP phones

The American company Grandstream has long and successfully produced a full range of equipment for IP telephony operating using the SIP protocol. The main emphasis is on the budget segment. Grandstream IP phones are reliable and easy-to-use devices for a wide range of end users, both private and corporate. Due to their focus on the open SIP protocol, they are compatible with various systems, software and servers of the most different manufacturers. The advantages of Grandstream devices are:

• Excellent ergonomics;
• High sound quality;
• Affordable price.

Budget model of office IP phone with one SIP account - Grandstream GXP1610:

Office phone with support for SIP 2 lines and power over Ethernet (PoE) - Grandstream GXP1625:

Budget models of IP phones from the above brands are comparable in quality and price. Still, what is their difference?

Peculiarities Yealink:

• Pleasant ergonomics;
• Convenient WEB interface for settings;
• High performance.

Advantages Panasonic:

• Opportunity settings via WEB or download configuration file;
• Twocolor options of devices, which is sometimes important for compatibility with the office interior;
• SIP DECT models support more simultaneous conversations at a lower price than other brands.

Peculiarities Gigaset:

• Work with SIP lines and analogue ov;
• Free calls via gigaset.net

Differences Grandstream:

• The most budget price;
• X good ergonomics.

Model name Yealink	Number of SIP accounts	Telephone lines

Mango Telecom is a leading SIP provider and equipment supplier.

Call Mango Telecom and sign only one contract to receive communication services and equipment.

Mango Telecom is not only a seller of equipment, but also a leading SIP provider. You do not need to separately look for an equipment supplier and a telephone service provider, enter into many contracts, pay many bills, and then rack your brains about how to connect the purchased equipment to a telecom operator. You only need to make a call to one company. Everything else is our concern!

2 year warranty on Yealink and Grandstream equipment and 5 years on Panasonic.

Only official equipment and exclusive conditions:

Only at Mango Telecom the manufacturers' equipment has an exclusive two-year warranty. Today there is a lot of “gray” equipment on the market, which is much cheaper than the official one. Such equipment, as a rule, is intended for sale in Europe, but was illegally imported into Russia. Therefore, it costs much lower due to unpaid customs duties. If you buy such equipment and it breaks down, the manufacturer’s official service center will simply refuse to repair you. And the selling store most likely will not want to make repairs at its own expense. Thus, you can be left without equipment and without communication. Mango Telecom has direct contracts with all manufacturers of equipment offered in the online store. Therefore, our company always guarantees you full support for the purchased equipment.

Your business runs non-stop, even if your equipment fails.

We will provide you with equipment during warranty repairs.

If you buy equipment from Mango Telecom, and during the warranty period it breaks down through no fault of yours, we will provide you (and all customers without exception) with replacement equipment of similar characteristics. The important thing is that the equipment is provided for the entire duration of the repair, so you will always stay in touch with clients, partners, suppliers and colleagues.

Turnkey telephone installation. Qualified engineers will come to you and set up your equipment efficiently and quickly.

A visit from a Mango Telecom engineer to set up four phones (ports) will cost you only 2000 rubles. In other companies, setting up one phone costs up to two thousand rubles. In addition, the high qualifications of Mango Telecom’s in-house technical specialists guarantee you no less high quality of services provided.

Some equipment sellers do not have the full-time employees needed to set it up, since the work of these specialists in the company's staff is usually expensive. Therefore, such sellers often offer contacts of individuals who cannot guarantee high-quality equipment setup. In contrast, Mango Telecom employs a whole staff of qualified engineers who can quickly, accurately and correctly configure equipment of any complexity, and also guarantee its efficient operation.

24/7. Full responsibility and 24/7 technical support.

Mango Telecom bears full responsibility for the configuration, installation and technical serviceability of the equipment, which undergoes mandatory testing for compatibility with the services of the Mango Office line. On-site technical support is also included in the company's services. A qualified engineer will come to your office as soon as necessary and fix the problem on the spot or make the necessary adjustments. In addition, you can receive technical support by phone or email. 24 hours a day, 7 days a week

If you want quickly, simply and without extra costs to install telephones for an office or company of any size and type or to buy equipment “for a project”, Mango Telecom is ready to offer you favorable individual conditions and discounts on the delivery, setup and maintenance of equipment.

Gradually expanding its capabilities, quickly responding to market needs, IP telephony today offers consumers not only a standard set of functions, but also flexible, completely new solutions. One of the innovative trends in the development of VoIP technology is the WiFi IP phone, the basis of which was wireless standard exchange of information. IP telephony devices' support for Wireless Fidelity (Wi-Fi) technology ensures subscriber interaction by connecting phones to a computer IP network wirelessly, which does not require laying additional kilometers of cable.

After the first WiFi SIP phone was introduced to users who quickly appreciated the convenience and mobility of using such devices, another struggle began between manufacturers to attract a new client audience. The game in the market continues, and today consumers have access to not only Wi-Fi phones from well-known brands, but also wireless solutions from companies just starting out.

WiFi IP phone - benefits of use

Wired IP telephony solutions, abundantly available on the market, no longer meet the needs of users who regularly move geographically. The implementation of the DECT standard allows you to expand communication possibilities, but still does not completely ensure mobility, since the handset is tied to a DECT base, which, nevertheless, connects to computer network more often by wire.

Wi-Fi IP phone is optimal for use in the following conditions:

• enterprises deployed over a large area, where employees, moving across territories, must always remain in the communication zone;
• Using a SIP Wi-Fi phone in companies with distributed offices, employees can change their location while remaining tied to a specific number;
• A WiFi SIP phone will be an excellent solution for home users who want to have a single communication device for travel, work, and home.

Among the advantages that any WiFi IP phone has are:

1. Deployment of high-quality communications without laying cables, which is especially important for hard-to-reach points.
2. Supports access to mobile device networks.
3. Guaranteed interaction between devices from different manufacturers.
4. Support for the Wi-Fi standard ensures the operation of these devices worldwide.

Capabilities of IP phones from various manufacturers

Trying to understand the characteristics and capabilities wireless WiFi IP phones, we have chosen for comparison several models from different manufacturers that work using the SIP protocol:

1. Welltech WP589 is a phone from one of the leading Taiwanese manufacturers.
2. AddPac AP-WP100 is a phone from the Korean company AddPac Technology.
3. Linksys WIP330 is a phone from an American manufacturer operating under the Cisco Systems brand. Since January 2013, the company has become part of Belkin Corporation.
4. ZyXEL P-2000W_V2 is a device from another, no less famous, Taiwanese company.
5. DORO IP 700 WiFi is an IP phone from a Swedish company.

Each of the devices, having different functionality, at the same time supports a large number of similar functions. These IP phones have the following features:

• work using Wi-Fi wireless technology;
• support for the SIP protocol, which guarantees high quality exchange of any type of information (voice, video, text messages);
• support for caller ID function;
• built-in phone book;
• call transfer;
• support for call forwarding;
• call hold;
• memory dial/speed dial;
• call history;
• installation of melodies with the ability to adjust;
• voice activity recognition function;
• voice activity recognition function, which allows you to save traffic due to pauses in the conversation;
• support for the comfortable noise generation function, which provides a feeling of presence during pauses;
• the implementation of echo cancellation allows you to avoid acoustic inversion (reflection of your own voice in the dynamics);
• function keys;
• displaying information on the phone display;
• built-in encryption algorithms;
• vibration alert;
• watch;
• calendar;
• calculator;
• alarm.

Distinctive features of WiFi SIP phones

In addition to common tools, each of the presented VoIP phones also has distinctive features.

This model from the Taiwanese company Welltech provides the possibility of 2x2 registration (two accounts on two servers), as well as support for IP PBX. If necessary, the firmware can be updated via the Internet.

Users will undoubtedly be pleased to be able to use standard Nokia batteries, which last for more than 150 hours of operation. It is also possible to connect to a PC or laptop using the MiniUSB interface.

Besides standard set Wi-Fi IP phones AddPac AP-WP100 can also be used in IP broadcasting systems. The device serves as a signal source using a 3.5mm jack connected to the connector. external source or your own microphone. Installation software Smart Messenger allows you to control your phone from a regular computer.

The network capabilities of the AddPac AP-WP100 are quite diverse - NAT/PAT support, distribution optimization network resources, DHCP server, VRRP protocol support, data routing.

3. WiFi IP phone Linksys WIP330

Convenient and most importantly intuitive interface for settings and control in combination with

advanced functionality will undoubtedly appeal to the most advanced users. Easy setup, built-in web browser, browsing the Internet, working with by email, as well as the ability to receive streaming video.

Another feature of the Linksys WIP330 is the presence of an adaptive jitter buffer (delays in data transmission characteristic of the Internet), which compensates for phase jitter, improving sound quality.

This device is equipped with a built-in WEB configurator, auto-initialization support, and the ability to connect a headset.

The phone has the ability to set a walkie-talkie mode, when the devices communicate directly, bypassing access points and SIP servers.

Firmware update via Wi-Fi, strong WLAN encryption / Wi-Fi network, opportunity

WLAN search using Site Survey commands, automatic login to the network, no influence when moving between access points.

Some more differences

When comparing these IP Wi-Fi devices, it is also advisable to note the following points:

1. Wi-Fi IP phone Welltech WP589, AddPac AP-WP100, Linksys WIP330 and DORO IP 700 WiFi have color displays, while the ZyXEL P-2000W_V2 has a monochrome screen.
2. Phones support different numbers of SIP servers:
   • Welltech WP589 – up to 4;
   • DORO IP 700 WiFi – up to 6;
   • other devices – from 2 to 4.
3. The AddPac AP-WP100 SIP wi-fi phone, as well as the Linksys WIP330 wi-fi ip phone, support the ability to create conference sessions. In addition, Linksys WIP330 is the only one among the presented models that supports video conferencing.
4. NAT support, implemented in the AddPac AP-WP100 and Linksys WIP330 devices, allows you to convert internal IP addresses to external ones and use a single address to access the Internet.
5. In addition to IP telephony, the Welltech WP589 SIP wi-fi phone can work as a regular GSM device.

SIP wi-fi phone – convenience and mobility

Concluding the review, I would once again like to note the functionality and mobility of movement that the development of the new branch of IP telephony provides. The compactness of devices, the absence of being tied to a specific location, and the variety of functions make wireless devices increasingly popular. Well, the final choice should depend on the wishes of a particular user and the requirements that he places on the phone.