people inside the office

Making Local Calls with Remote Branches

A small company with multiple branches has to have communication systems that can connect all the offices seamlessly and at a minimal cost. Traditional PBX telephony would require separate PBX boxes for each office. A simpler and less expensive solution is to make use of integrated VoIP networks.

Connecting Your Remote Offices


There are several ways you can link remote branches to one corporate communication platform, depending on the number and size of the remote sites that you wish to connect. There are, however, some basic considerations that you have to make to fit the size and number of branch offices, costs, ease of use, functionality, and the dependability of your interconnections. A small business can avail of PBX solutions that fit its needs and budget.

The Networking IP PBX

The system-to-system, premise-dependent, multi-branch office IP network is best for big separate offices, where branch office workers need the same level of communication as those available in big offices. In this kind of multisite IP network, each specific office location has its own PBX. This is set up to interconnect through the SIP trunk or the PBX’s own interconnection method, like in many small business PBX solutions. With this IP PBX system, you can share trunk line among offices, make interoffice phone calls, and extend your resources over various locations. This helps you save on communication costs.

The Remote Extension Registration

For small branch offices with restricted endpoints, one of the best ways is to connect these offices via remote extension registration.  A select few softphones can be situated at any branch without the need for added hardware or expenses. The phones can be registered on a PBX system thru the VPN or DDNS configuration. This way, all the voice calls are then routed to the main IP PBX, which then completes the call. But the remote connection thru DDNS requires some firewall configurations, like a port forwarder that can pose some security threats to the system.

Switching to the Cloud

Cloud communications graphic

When a business expands to more than one location, the maintenance of a multisite communication system can pose a major challenge. Cloud communication systems are free, so you can use them without any issue. They serve various locations—from small, large, to global offices—through the web. As businesses switch to the cloud, IT personnel can be reduced, or the need for staff personnel for this purpose can be eliminated. An all-inclusive communication system is provided seamlessly wherever you may be, with call transfer, unified communication, extension dialing, and other strategies.

Using a VoIP Gateway to Link Remote Sites

When you have more terminals in a certain location and you do not want to add extra PBX systems on remote office locations, you only need to add VoIP gateways. This help connects your headquarter PBX systems and your phones across all branches.  VoIP solutions are best for small businesses and branch offices with analog voice infrastructures to help leverage the power of VoIP technology. A VoIP gateway system for branch offices can help realize these features, like the use of corporate trunks for outbound and inbound calls on several branches and free interoffice phone calls.

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