Posted on

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.


FXO Ports4 analog lines8 analogue lines16 telephone ports (RJ11) 50-pin Telco connector24 telephone ports (RJ11) 50-pin Telco connector2 Telco 50-pin connectors
Surveillance PortAnalogYes1 Gigabit Ethernet.1 Gigabit Ethernet.1 Gigabit Ethernet.
Electricity supplyExternalExternalAdvancedAdvancedAdvanced
RJ-45 PortsTwo portsTwo portsOne PortOne PortOne Port
SIP AccountsThree accountsThree accounts2 SIP profiles, 1 account per port2 SIP profiles, 1 account per port4 SIP profiles, 1 account per port
Caller IDYesYesYesYesYes
Firmware UpdateBy TFTP and HTTPBy TFTP and HTTPBy TFTP and HTTPBy TFTP and HTTPBy TFTP and HTTP
Dialing StagesTwoTwoTwoTwoTwo
Port Video InYesYesYesYesYes
Other specificationsResponse 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.