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Why buy a Yealink RT20 repeater?

If you are looking for the Wi-Fi connection of your home or office to reach the most hidden corners it will be necessary to use small aids so that the natural signal of router or modem expands even beyond its own limits and the appropriate solution for this is the use of a repeater which, as its name indicates, is responsible for receiving the signal from the network device and forwarding it so that the coverage area is much larger and so we are always connected.

Yealink offers you the DEC20 Yealink RT20 repeater which has been designed following the parameters of the Digital Enhanced Cordless Telecommunication (DECT) standard, offering compatibility, easy installation and new visualization features.

The Yealink RT20 repeater can be implemented with the aim of extending the DECT radio coverage that originates from the Yealink base devices (models W52P and / or W56P) to all available directions of range, with this repeater we have an LED screen where we observe the different acoustic and visual differences allowing us to determine the level of intensity of the signal.

The Yealink RT20 repeater has a lightweight design and easy installation with plug-and-play technology ideal for homes and SOHO (Small Office Home Office).

Among its most outstanding features we point out:


  • Compatible with Yealink W52P / W56P IP DECT phone
  • Supports DECT GAP
  • Can be configured with Plug & Play technology
  • Supports star connection with up to 5 devices
  • LED Display

At the technical level the Yealink RT20 repeater offers you the following ideal benefits for a total connection:

  • Compatible with DECT GAP standard
  • Supports automatic call transfer between RT20 devices
  • Plug & Play configuration
  • Supports up to 5 repeaters at each base station
  • Supports up to 2 simultaneous calls per repeater
  • Integrates the auto-association function
  • It has a tactile switch which allows to re-establish the base link.
  • LED display offering an LED for actions such as Power, DECT Link and Active Relay
  • The Yealink RT20 repeater offers an internal range of up to 50 meters and an external range of up to 300 meters.
  • Integrates 2 omnidirectional QWL antennas
  • Has a radio frequency range from 1880 MHz to 1900 MHz
  • Modulation is based on GFSK
  • RX sensitivity of -91dBm
  • Operating conditions are 0 ~ + 45 ° C (+ 32 ~ 113 ° F)

With the Yealink RT20 repeater we are acquiring an advanced device with which we will no longer lose the signal and thus we will always be connected both in our personal life and work since wireless connections are more than vital in the daily life of the human being.

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Features of Yealink T27G terminal

If you are looking for a device that meets the expectations of the end user and each of the customers with great features, Yealink offers you the terminal Yealink T27G which is the update of the T27P where you will find a much more dynamic response in the user interface of the phone, as well as better performance of the device in general terms.

The Yealink T27G terminal was created with several functions focused on providing the user with high level voice capabilities, as well as a better extension capability for business-related functions.

This terminal features Yealink Optima HD technology and integrates Opus’ broadband codec which improves sound quality by increasing the excellence of the voice signal.

The Yealink T27G terminal has been integrated with Bluetooth, Wi-Fi and USB recording functions and is fully compatible with the GigE-based network as well as Gigabit Ethernet and if security is an issue of concern, the Yealink T27G terminal makes use of standard encryption protocols with which remote provisioning is carried out securely.

Among the main features of this terminal we find:


  • It has the HD Voice technology of Yealink Optima which makes a combined use of hardware and software together with broadband technology in order to provide maximum acoustic performance.
  • It has the HD Voice technology of Yealink Optima which makes a combined use of hardware and software together with broadband technology in order to provide maximum acoustic performance.
  • It has Bluetooth, Wi-Fi and USB recording functions and in addition it has three pages of flexible buttons which can be programmed with up to 21 DSS keys.
  • The Yealink T27G terminal makes use of SIP over the Transport Layer Security protocol (TLS/SSL) and is compatible with the 3CX and Broadsoft Broadworks switch providers.
  • Supports PoE
  • Allows integration of up to 6 SIP accounts
  • Supports expansion modules

Now, if you are interested in the Yealink T27G terminal, its technical specifications are as follows:

  • Use the narrow-band codecs AMR-NB (optional), Opus, G.711 (A / μ), G.723.1, G.729G.729AB, G.726, iLBC and in broadband use AMR-WB, Opus, G.722.
  • Features full-duplex hands-free speakerphone with AEC
  • Supports up to 6 VoIP accounts
  • Integrates functions such as one-touch speed dialing, call forwarding, call waiting, call transfer, call hold, auto answer, IP direct call without SIP proxy
  • Synchronization using BT40
  • USB Call Recording
  • Directory with up to 100 entries
  • 3.66″ LCD screen with a resolution of 240×120 pixels
  • Multilanguage interface
  • Two Gigabit Ethernet ports
  • Date and time synchronized with SNTP
  • AES Encryption

The Yealink T27G terminal is a complete and integral solution for communication needs with the best functionalities in the market.

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Why buy the Yealink T29G terminal?

When you are looking for a reliable equipment, powerful and high performance, but whose cost is not high in order to reduce economic issues in the organization, Yealink offers the T29G terminal which is the perfect mix of price / quality.

For just over EUR 100, the Yealink T29G terminal has become the most advanced model in the family of Yealink T2x terminals which has Yealink Optima HD technology which has been developed to establish an ideal communication with improvements focused on the voice to be clear and clean, in addition to that the Yealink T29G terminal has a high-resolution color TFT screen to enhance everything we see on it.

Why acquire the Yealink T29G terminal covers many aspects and not only the above mentioned or also that this terminal supports Gigabit Ethernet ports, as well as a large set of device connections within which we can also link EHS headphones and USB.

We are going to give you some ideas to encourage you to buy the terminal Yealink T29G, these are:



  • It has the HD Audio Yealink Optima technology which is a mixture of software and hardware, which together with broadband technology are used to optimize the maximum acoustic performance.
  • Integrates a new user interface
  • Productivity-oriented features such as XML Browser, SCA, BLF List, call forwarding, call transfer, 3-way conferencing, and many more have been added at the productivity level.
  • Advanced connectivity features as it allows network connectivity, using two Gigabit Ethernet ports, where one of them is used for Power over Ethernet.
  • The Yealink T29G terminal supports up to 6 expansion modules, allowing up to 240 additional buttons to be added to an LCD screen.
  • SIP is used based on the transport layer protocol (TLS / SSL)


To convince you to buy the Yealink T29G terminal, these are some of its technical specifications:


  • Supports codecs G.722, G.711(A/μ), G.723, G.729, G.726 and iLBC
  • Supports up to 16 VoIP accounts
  • Features include call hold, call waiting, call transfer, 3-way conferencing, one-touch speed dialing and more
  • Directory with up to 1000 entries
  • It has 6 navigation keys
  • Possibility to program 10 line keys with up to 27 different functions
  • AES encrypted account
  • Yealink T29G terminal can self-provision with FTP/TFTP/HTTP/HTTPS protocols
  • Date and time synchronized with SNTP
  • Can be used for wall mounting
  • IPv6 Compatible


You can see how the Yealink T29G terminal is a mid-range solution, but with enough professional capabilities for VoIP communication in your organization.

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Advantages of using VoIP telephony

Since the smoke signals man has sought the way to communicate with others and with the advancement of technology, equipment and methods of communication has been redefined to establish a communication between users and in this twenty-first century we can talk about the technology that has set a milestone and is VoIP, many wonder at this point, What is VoIP? Well, VoIP (Voice over Internet Protocol), is a technology that has been developed as a means of communication where all data are sent over the Internet but not in the traditional form of copper or analog wiring, this allows VoIP communication is distributed as packets or fragments of digital data that moves in a LAN (Local Area Network) and WAN (Wide Area Network) optimizing the maximum quality and reliability of communication.

Obviously for everything to work synchronously in delivering the best signal results must meet some criteria both hardware and software such as:


  • To have equipment compatible and suitable for VoIP such as the Grandstream Gateway or the Yealink terminal.
  • Have the necessary codecs to convert the telephone’s analog voice transmission into digital packets so that it can be transferred over the network.
  • Have the PPP protocol (point-to-point protocol) to segment the packets as this will help delay the transmission if it is distributed on low speed lines.

If you want to connect a traditional analogue telephone line to the new technology of the VoIP system, it will be necessary that we have an FXO gateway as it allows to connect the incoming analogue FXS line, as well as the line of the telephone provider directly in the FXO port of the gateway, here comes into play the Grandstream Gateway and Yealink terminal.

Once we implement this we will see some benefits of VoIP technology as:


  • Reduction of costs for each call by using the Internet Protocol for this purpose, this includes both local and international calls.
  • Integration of diverse functionalities since when we use the Yealink terminal or the Grandstream Gateway we are taking with us diverse characteristics (based on the acquired model) that allow to simplify the tasks of management of the calls like calls in wait, mailbox, etc.
  • Offers mobility service because with VoIP we can configure services in various locations without losing quality or availability.
  • Facilitates interaction with the customer because, being based on IP, this technology facilitates that from anywhere in the world we can talk to customers or users.
  • Total availability because if there is a network failure the calls can be redirected to a backup so as not to lose communication.

We see how VoIP has positioned itself, and will continue to do so, as the most complete solution for modern communication.

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Grandstream GXW4248 Features

Grandstream offers a complete series of products focused on maximizing all the functions and scope of VoIP technology for both large and small or medium enterprises and within its broad portfolio we find the Grandstream GXW4248 which is a high-density equipment which seeks to take advantage of every benefit of Gigabit speeds to establish clean and comprehensive communications.

The Grandstream GXW4248 is part of the FXS family which is in the ability to connect multiple sites without failure allowing all local office devices can be connected to an IP PBX network which simplifies installation and configuration processes.

Purchasing a Grandstream Gateway GXW4248 will provide equipment with multiple analog telephony FXS ports (either 16/24/32/ or 48 ports), optimized voice quality, new telephony features, flexible dialing plans, enhanced security protection level enhancements and a host of additional features.

Within the Grandstream Gateway GXW4248 range of features we find:


  • Automated provisioning options are available including TR-069 and XML configuration files
  • It has T.38 fax support which allows you to create FaxoverIP.
  • Integrates advanced security TLS/SRTP/HTTPS protocols
  • Enables 3-way audio conferencing focused on conference calls
  • Adds features such as Caller ID activation or blocking, Call Waiting, Assisted Call Transfer, Call Forwarding, Call Forwarding, Pause and Do Not Disturb
  • Offers 10/100/1000 MBps auto-detection port at network level

It is possible to see how the Grandstream Gateway GXW4248 integrates multiple functions that will be of vital help regardless of the size of the organization.

Now, technically a Grandstream Gateway GXW4248 offers the following:


  • Fax relay based on T.38, ease of creating a group 3 of up to 14.4 kbps and auto switching in G.711
  • Has LAN link, LAN activity, telephone port connection for everything associated with the network
  • Echo Cancellation
  • 128×32 backlit graphic LCD display with support for multiple languages
  • At QoS level DiffServ, TOS, 802.1P/Q VLAN tagging is offered.
  • For signalling, SIP (RFC 3261) is integrated over UDP/TCP/TLS.
  • Viewing or blocking Caller ID and Call Waiting
  • We have 4 SIP server profiles per system and an independent SIP is delivered per available port.
  • For provisioning issues supports TFTP, HTTP, HTTPS, TR069 protocols
  • Offers desktop and rack mount with front brackets
  • To manage the Grandstream Gateway GXW4248 we can use Syslog, HTTPS, a Web browser, voice message or TR-069.
  • Para la gestión de voz se pueden usar los estándares G.711, G.723.1, G.726 (40/32/24/16), G.729 A/B, iLBC.

The Grandstream Gateway GXW4248 is one of the most ideal solutions for any type of company that wants to have a team not only comprehensive but powerful and functional.

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Gateway grandstream: Hybrid telephony solution

There is still doubt whether having an IP PBX in place or a cloud-based PBX, which is the best choice? Features, performance and costs will be the key when selecting our option, always thinking about the needs of the company.


Brief history of Grandstream Networks


Grandstream Networks was founded in 2002 in the United States with the objective of becoming the leading manufacturer of voice/video telephony/video surveillance systems in Internet protocols.

centralita ip

The products are based on standard SIP protocol, offering the broadest interoperability in the industry.

Corporate Structure

This privately owned company has more than 400 employees worldwide.

Its Corporate mission is to become the provider of system innovations in voice/video/video communication/IP surveillance for SMBs and consumers worldwide.



Types of switchboards and their functions

In the business communications market, three types of switchboards stand out: analogue, digital and IP PBX’s.

Analogue switchboard:



They are based on analog technology, calls are switched and redirected to the recipient through the electronics of this switchboard (small switches). Phones are usually simpler and connect with an RJ9 connector (two wires).

They use basic lines (RTB) for outdoor connection. Its price is cheaper with rather limited functionality, require outside physical line for each call.

Digital switchboard:

At present, most PBXs are of this type (digital). In a technical way it can be said that they are similar to a server (computer), the calls are managed transforming them to data (1 and 0s).

A switchboard has the ability to support several types of input lines (ISDN, RTB, GSM, fax, modem, among others).

The terminals to be connected must be digital (they are connected through an RJ11 or RJ 45 cable). They merit as well as analogical switchboard to have the wiring in the office.

IP switchboard:

IP PBXs are the most advanced and modern solution available. They are very similar to digital switchboards (they manage data with 1 and 0) their standard is IP communication (just like Internet data).

Thus, sharing office Internet networks (Ethernet) as well as external networks that connect everyone.

This system allows sharing Internet networks, including computers, through any Ethernet connection.




Why choose an IP PBX?


When we talk about the reasons for choosing an on-site PBX we are not going to have any other answer than control.


Who doesn’t like to have control?


Advantages of Gateway Grandstream


There are a number of advantages when we decide to have an IP PBX, among which stand out:


  • Long-term money savings, lower recurring rates with many more features and customization capabilities.
  • Features, resources and integrations are leveraged.
  • Redundant and high availability solution (important if your company provides continuous service).
  • Guaranteed security: manages, monitors and controls the security of the system.
  • Great integration capacity with CRMs, PMSs and call centers.


Comparison of the best Gateway Grandstream options


Below is a comparison table with the best options for an IP PBX available on the market.


Features/Model GXW-4104 GXW-4108 GXW4216 GXW4224 GXW4248
FXO Ports 4 analog lines 8 analogue lines 16 telephone ports (RJ11) 50-pin Telco connector 24 telephone ports (RJ11) 50-pin Telco connector 2 Telco 50-pin connectors
Surveillance Port Analog Yes 1 Gigabit Ethernet. 1 Gigabit Ethernet. 1 Gigabit Ethernet.
Electricity supply External External Advanced Advanced Advanced
RJ-45 Ports Two ports Two ports One Port One Port One Port
SIP Accounts Three accounts Three accounts 2 SIP profiles, 1 account per port 2 SIP profiles, 1 account per port 4 SIP profiles, 1 account per port
Caller ID Yes Yes Yes Yes Yes
Firmware Update By TFTP and HTTP By TFTP and HTTP By TFTP and HTTP By TFTP and HTTP By TFTP and HTTP
Dialing Stages Two Two Two Two Two
Port Video In Yes Yes Yes Yes Yes
Other specifications Response to small businesses with branches or remote offices.

With web connection can be

Response to small businesses with branches or remote offices.

With web connection can be used as video surveillance

New generation of high density compatible with SIP standard.

Advanced security by AES encryption

New generation of high density compatible with SIP standard.

Advanced security by AES encryption

New generation of high density compatible with SIP standard.

Advanced security by AES encryption


Why implement hybrid VoIP solutions?

There are many reasons to go from a traditional telephony (analog) to a digital (SIP, VoIP), we name below only three by which you should implement in your business.


  1. Investment


Tight budgets can make it difficult to make a complete infrastructure change when it comes to changing telephony altogether.

A granstream gateway can simultaneously connect analog phones and IP PBXs to deliver the benefits of SIP technology.



  1. Lack of availability


In some geographic regions the bandwidth is reduced, preventing to obtain a SIP connection to migrate completely to digital telephony.

With grandstream gateway you can build a 100% IP network internally and connect it to analog trunks.



  1. Massive deployments of analog telephony.


Many residential phones are based on analog technology and refuse to switch to digital technology.

Creating a smooth transition to allow users to continue using analog devices will be the best way to address this problem.



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Yealink terminals: VoIP very easy

The Yealink terminals belong to the company of the same name that was founded in China in 2001, and since that time until now have become one of the leaders of VoIP telephony worldwide.


Why are yealink terminals among the leaders in VoIP?


This company is getting better every day in the development of equipment for communications solutions to unify voice, video calls, cloud-computing, image processing and data management.

virtual pbx



Brief history of the company Yealink


From the beginning they have been faithful to their philosophy: “Easy collaboration”.

To speak of Yealink is to speak of innovation, trajectory and recognition, they have created, covered and innovating for the needs of the clients.

The company has stood out for being a service provider to more than 140 countries (including Spain), not only manufacturing SIP phones.



Purpose of Yealink Company

The company presents as its primary objective the transformation of standard communications to digital formats, only four years after its foundation were the main supplier of yealink terminals in the world.


Evolution over time


By the year 2010 they become the first SIP telephony provider for China.

By 2013 they open their base office in Hangzhou and the following year (2014) they become one of the two largest SIP telephony providers in the world.

At the end of that year begins the collaboration with the company microsoft catapulting as a leading company in the video conferencing system.



Yealink’s competitive alliances with its terminals


By 2016, Verizon, British Telecom, AT&T, Vodafone and KPN will form a strategic alliance.


Product quality: Your main goal


The yealink terminals provide basic capabilities, as well as advanced capabilities, among which stand out:

  • Caller ID
  • Call Transfers
  • Call Waiting
  • Videoconferencing
  • Agendas

Advanced computer developments


Among the features that have helped yealink terminals to be leaders in the market, the following stands out:

1) Special service for videoconferences: Yealink Meeting Server (YMS) infrastructure and all-in-one server; yealink terminals include video; PC software; mobile and cloud applications.

2) Voice communication, highlighting its terminals with audio-only versions, as well as audio+video-called versions.

2.1 Home desktop terminals that have improved HD sound, integrating: Opus codec, Wi-Fi and even Bluetooth.



  • Yealink T19E2: Basic phone has 1 SIP account, WITHOUT PoE, WITH PSU, its graphic screen is 132 x 64-pixel, presents 4 Soft Keys, 3 conference, XML Address Book, presents IPv6 ports, Switch Ethernet 2xLAN 10/100Mbps, compatible with YHS33 headphones and wall mount.


2.2 Enterprise Desktop Terminals: ranging from basic one-line terminals to color displays, powered using Power over Ethernet (PoE).

2.3 DECT terminals, preferred by many SMEs, because they are a solution, because they are wireless terminals with simple operation, without neglecting reliability. They do not deserve to share the wifi network between VOIP terminals, currently only serve for voice.



  • Yealink W53H: A high performance SIP cordless phone. Solution for small and medium businesses. Synchronizes a total of 8 W53H handsets to enjoy mobility and flexibility.


Outstanding features

  • Compact design
  • Using Handsfree
  • Intuitive color display.
  • Connection for 3.5mm jack headphones
  • Long battery life
  • Has backlit keys
  • Allows 3-way conferencing
  • 2 simultaneous calls
  • Compatible to synchronize up to 8 terminals yealink W53H

3) Custom developments, with a platform (Device Management Platform) that allows managing devices using management tools, implementation and troubleshooting.

Yealink T48S: This yealink terminal offers the following functions:



  • Certified to use Skype for business
  • Up to 16 accounts with protocols: SIP, WITH PoE, WITHOUT PSU
  • Codec Opus, HD codec G.722
  • USB 2.0 Ports
  • 7″ colour touch screen with 800×480 pixels
  • 29 keys for direct dialling
  • Has HD speaker and headphones
  • 2 Ethernet connections (LAN)
  • Compatibility with: YHS33 headset, Bluetooth (BT40 dongle), WIFI (WF40 dongle), EHS36, EXP40 expansion module.
  • Allows two adjustable angles for mounting.



Yealink Management Cloud Service is available to simplify device management.

4) Discontinued Yealink terminals continue to be supported after sales.

5) They sell accessories.



Advanced Generation Range


Yealink T2 series terminals (Yealink T21E2 Terminal, Yealink T21PE2 Terminal, Yealink T23G Terminal, Yealink T27G Terminal, Yealink T29G Terminal) are advanced equipment. These yealink terminals are the representation of the latest generation in telephony, so that the customer’s experience is pleasant.

Yealink T29G: Advanced gamma phone that has 16 accounts for SIP communication, WITH PoE, WITHOUT PSU, its graphic screen is 3.6″ 240x120pixels, with backlight, has two colored line keys, with up to 27 functions to program. HD speaker and headphones, with 2 Gigabit Ethernet switch, its compatibility with YHS33 headphones, Bluetooth (BT40 dongle), WIFI (WF40 dongle), EHS36, EXP20 expansion module is proven.

Confidentiality is a strong point in all yealink terminals, protecting all users from electronic espionage.





What do Yealink terminals offer?

The Yealink terminals stand out for a wide range of functions and features, among them we have:


  • Compatibility of TIA920 (Telecommunications Industry Association) 920 compliant accessories. Allowing savings in accessory costs.
  • We always have available consultancies and technical support, which help to solve our inconveniences.
  • yealink terminals are created to meet the high expectations of users.
  • Appearance, efficiency and comfort is a highlight of all yealink terminals.
  • Prices are competitive.
  • They work well and with virtual pbx support.
  • They can be combined with telephone exchanges for Call-Centers solutions.


SME videoconferences thanks to yealink terminals.

The videoconferences allow to shorten distances and above all to save costs, the terminals Yealink allows solutions to low costs for Pyme.


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Why implement IP Telephony in your company?

As you can see in everyday life, communication is essential to achieve business, strengthen friendships and in general be aware of everything that happens around us or in the world, communication can be written, by video or voice and precisely this last section we find a comprehensive solution that provides a clear and dynamic signal either locally or externally using specialized hardware and do not speak of any other than IP telephony or commonly called VoIP (Voice over IP – Voice over IP) and to understand that we speak IP telephony uses a set of resources thanks to which the voice signal will be routed over the Internet network through IP protocol (Internet Protocol), with it, the voice signal will be transmitted in digital form using data packets which is much safer and more modern than being sent in analog form based on a group of traditional circuits.

With the concept of IP telephony in mind, in Neotel we want to explain why it is ideal to implement this type of technology in your company using Yealink terminals or Grandstream Gateway which perfectly complements both hardware and software in the VoIP world.

Some of the compelling reasons for implementing IP telephony are:


telefonía ip


  • Reduced network complexity as VoIP technology works using an existing data network, this avoids complex network structures and allows higher speed
  • Reduced network complexity as VoIP technology works using an existing data network, this avoids complex network structures and allows higher speed
  • Facilitates integration with various systems since VoIP, with Yealink terminals or Grandstream Gateway, can be used with a CRM or ERP system which in turn will give us the opportunity to keep records of each of the corporate customers, host voicemail and many more tasks.
  • Option to implement a hybrid deployment which is achieved with the Yealink terminals or a Grandstream Gateway because its structure optimizes the migration of an analog system to VoIP.
  • Network connectivity in a unified way, this is achieved thanks to the fact that all the signal will be transmitted through the IP network which will centralize all users of the company.


You can see how to implement IP telephony, although it may seem complex, in the medium and long term you will see results in costs, integration and unification of the signal of all types of organization and remember that Yealink terminals or Gradstream Gateway are available for this project.

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Yealink terminals: The evolution of IP terminals

An IP terminal is a device that allows the connection of voice through internet protocol (VoIP), to be able to have a call as if it were a conventional call, Yealink terminals are the models available in the market with the most advanced technology, practical and economical.

What is Internet Protocol or VoIP?


The internet protocol or VoIP (the one used by yealink terminals), are a series of resources that allow voice communication through the internet.

telefonía ip

This protocol allows the transformation of voice to data packets (unlike traditional telephony which is analog), ie transforming the analog call in digital to be transported over the Internet.


Differences between VoIP and IP telephony.

When you are talking about IP terminals you must make the difference between VoIP and IP telephony, for some it seems the same, but the truth is they are not, we present the differences below.


  • VoIP:

These are the standards, protocol and technology used by devices to transmit voice digitally. There are no calls, information, services or gateways.

  • Telephony over IP

Services that are available for use by the public, these are based on VoIP protocols.

How does internet protocol work in yealink terminals?

To be able to have a communication based on voice technology over the Internet you need a client, a server and a Grandstream Gateway, below we explain in detail each of them:

The client

In order to carry out calls, there must be information input (user’s microphone), it is encoded, packaged and transmitted over the network and reaches the IP terminal where it is decoded, unpacked and played at the output (yealink terminal speakers).


Who can be the client?

Skype or a company that offers IP telephony services using analogue telephone adapters or software for this type of communication (Softphones).


IP servers or switches are responsible for managing the database to account, collect, route, administer and control the service.

In these switches are installed software that operate all the information, allowing communication between 2 VoIP devices or between a VoIP and a conventional telephone.


Gateways grandstream

Grandstream gateways enable communication between users. Their main function is to provide connection with traditional telephony, functioning as a platform for virtual users (clients).

The gateways are used to terminate the call, in this way: the user initiates the call and it is terminated by the gateway granstream.

Many small or medium sized companies that have PBXs can use this technology not to replace it.


Advantages of VoIP Calls


There are a variety of advantages, among which they stand out:


  • Avoid long distance telephone charges (domestic and international).
  • Lower bandwidth required (compared to use of other mobile technologies)

Disadvantages of VoIP Calls

Among the disadvantages we have:

  • Lower call quality (latency, delay)
  • Ease of data theft (due to lack of system security).
  • Probability of virus infestation in the system (as there is no antivirus in the system).


What is a Yealink terminal?


The yealink terminals are digital devices that allow you to make voice and video calls using the VoIP protocol, using a local network or through the use of the Internet.

In many opportunities they present more advantages and options than the traditional telephony, multiple lines, digital cameras, color screens, capacity of wireless connection to fixed devices (bluetooth).


How to choose the best Yealink terminal?


Among the basic features necessary for choosing the best terminal yealink are the amount of lines you need, merit a color screen, what configurations you need, sound capacity, has voicemail, has access to video conferences, which network to connect.

These options will determine how complex should be the yealink terminal to choose, in Neotel 2000 we offer the best consultants to help you get the one that best suits your needs.



What determines the choice of yealink terminal?


Below you will find a list of features that are determinant when choosing your yealink terminal.

Yealink terminal costs

For many companies determining terminal costs will be essential when purchasing an IP phone. Entrepreneurs are enemies of unnecessary expenses.

VoIP telephony will lead to significant savings, but be careful if you choose the wrong yealink terminal, choose one of inferior quality or few configurable will lead to headaches.

The best available sound must be guaranteed in the devices to acquire.



The style that you need for your office, home or vehicle can be different style, can include wireless yealink terminals (similar to mobile devices) which merit to be powered from an electrical source.

Another stylistic situation is the need for a color screen for video conferencing, quick menu access buttons, pre-selected calls or receiving voice memos.



Quality may depend on shapes and sizes, many have been found in the market since VoIP appeared.

The quality of yealink terminal can be determined by the time in the market, the guarantee they offer.


Service Provider

The choice of service provider can make a big difference in getting the most out of the full-featured VoIP device, or just the most basic ones.

We must remember that VoIP telephony allows to feed several phones. Each of the telephones will connect directly to the internet, therefore a secure connection is necessary.

You must make sure that the service provider is compatible with all the features of your yealink terminal.


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Gateway Grandstream: Analog adapters for Internet protocols

Telephone infrastructures have allowed communication for years, now all systems have been changed to digital, using Gateway grandstream can adapt analog phones to receive VoIP calls.

What is an analog adapter?

The Analog Telephone Adaptor (ATA) is a device capable of converting the signals used for analog communications into the Internet Protocol (VoIP).

Generally these adapters are used to convert the digital signal (own or IP) in the analog signal, so you can connect to traditional phones (analog) or facsimile (also work transforming the digital signal to analog).


Why are they called Gateway?

centralita ip

Analog phone adapters can be described as Gateway because their operation is precisely the connection between both worlds (analog and IP).

However, we must be clear that a Gateway is described as a multi-port telephone adapter, which is almost always accompanied by more complex routing functions.


Disadvantages of ATAs

The main disadvantage of using these ATA devices is that you cannot enjoy all the benefits of IP telephony.

Differences between analog and digital (IP) phones

Before we continue talking about Gateway grandstream, ATA and digital telephony we will proceed to explain what is analog telephony and digital telephony.

Analogue telephony


An analog telephony is one that uses “waveform signals”.

It may be the best known type of signal, and undoubtedly the oldest. Remembering that the signalling between a telephone exchange and a telephone is the ability to receive and send information, among which stand out:


  • The start of the conversation is requested.
  • Select who to talk to
  • There is progress in the call (ring, busy ring)
  • If you initiate a new call

Brief history of analog telephony.

In the beginning the telephones used only a copper wire, so in this way, the audio was sent as signaling while the return was done by land.

As the number of telephones increased, it was necessary to increase them to a second wire per telephone (to avoid interference).

Characteristics of analog telephony.

Analogue telephony has the following characteristics:


  • Only one communication per contracted line.
  • More suitable for residential market
  • Numerical identifier (DDI) on each line.

Digital Phones

In the early 1980s, the foundations were laid for new telephone networks, where digital terminals were offered to customers.

The idea of digitally covering telephony merits the implementation of a digital signalling protocol between the device and the telephone exchange.

The ISDN protocol was designed, which consists of establishing a data channel between the telephone exchange and the device in order to be able to exchange messages.

The signal protocols used are generally “proprietary” by each of the manufacturers, only a few use the standard protocol ISDN.

Characteristics of digital telephones.

Among the most salient features are the following:



  • ISDN lines (BRI) allow 2 simultaneous calls using 2 channels of 64 Kbps (voice and data).
  • Adapts to a central for a single DDI (for outgoing calls).
  • ISDN lines (PRI) up to 30 simultaneous calls using 30 64 Kbps channels (for voice and data)
  • Its target is the business market.
  • The sound quality is better than analog (no noise or interference).

IP Phones


After the standardization of digital telephones, it evolved into telephones with the capacity to transport multimedia data through data networks.

IP phones have the ability to digitize the voice in the terminal itself, to pack and send data using the network (must use IP protocols).

The advantage of these terminals is that they can be “virtual” using applications. At the corporate level they usually use SIP protocols, in many cases using Gateway grandstream to carry out this task.

Features IP Phones.

IP phones have the following features:



  • No dependence on physical lines, rather merits a network infrastructure, no limitation on simultaneous calls
  • Telephone numbers hosted in the cloud of our telecommunications service provider. There are no limits when it comes to contracting telephone numbers, as well as geographical location we want to choose (there are regulations to be respected).
  • By not relying on physical lines you can create a network with a large number of locations.
  • Allows the interconnection between networks of stores, or delegations so that they are connected using a single header number.
  • Allows the interconnection between networks of stores, or delegations so that they are connected using a single header number.

Grandstream VoIP Gateway

Grandstream’s VoIP Gateways will act in several ways, the most important of which are the following: Gateway to other networks, as well as a platform to unify analog and digital communications.

Analog adapters enable the integration of analog devices into the VoIP PBX.

Features of Gateway grandstream.

Here are some of the features of the grandstream gateway

Analog adapters are robust.

No need for a server

Different SIP, ISDN or analog interfaces

Low energy consumption

Enables integration with analog devices

What does Grandstream offer?

Grandstream’s Gateways are ideal for any company that needs the incorporation of IP technology.

It is also ideal for taking advantage of investments made in traditional equipment (analog telephony, faxes and PBX systems).

Gateway Grandstream Recommendations

There is a wide variety of products and series available from Gateway grandstream that can be better adapted to your needs, we explain in a general way:

Models GXW4104/4108

These grandstream Gateway devices have the ability to convert IP calls into traditional calls.

The GXW 4104 offers 4 ports while the 4108 offers 8 FXO ports, both are installed the same way. These grandstream gateways offer the most complete interoperability with IP PBXs, IP servers and softswitches.

Models GXW4216/GXW4224/GXW4248

Gateway grandstream models have from 16 to 48 analog ports (FXS). In addition, these Gateway devices come with advanced security protection, unsurpassed voice quality, easy to configure, and excellent performance with high call volumes.