For multi-site businesses today, having high-quality branch office VoIP network and choosing the services that come with it has never been more important. It’ imperative that all remote sites, branches, and mobile workers can effectively communicate, smoothly co-ordinate, and operate in tandem so as to achieve the highest efficiency.
The deployment of a multi-location VoIP system can be extremely beneficial to keep all dispersed aspects seamlessly connected and solve common branch office issues like spiraling inter-office call costs and remote workers disconnection. In this blog, we will dig into a couple of available options to extend VoIP to remote sites and discuss how to build a seamless multi-site telephony system.
How to Connect Your Remote Offices
There are actually a number of economical branch office solutions to link remote branches to corporate communications platforms based on the size and number of remote sites you are looking to connect. Beyond the size and number of branch offices, functionality, costs, ease of use, and reliability of an interconnection system should also be taken into considerations.
1. Remote Extension Registration
For very small branch locations with only a few endpoints, one of the most cost-effective ways is to connect endpoints through a remote extension registration. A few phones/softphone can be located at any site without additional hardware investment on the branches. These phones can be registered to an on-premise telephony server (PBX system) in the main site via VPN or DDNS (Dynamic Domain Name System) configuration, for example, register remote extension on Yeastar S-Series PBX. In this way, all voice calls are routed to the central IP PBX, which completes the call. But what worth noting that the remote connection via DDNS inevitably requires some firewall configurations like port forwarding on the router, which might pose potential security threats.
2. Networking IP PBXs for Multi-Site & Branches
A premise-based, system-to-system multi-office VoIP network is ideal for larger separate offices, where branch office workers require the same level of communications and collaboration capabilities as those in large offices. In such kind of system-to-system multisite VoIP network, each location is equipped with their own PBX and are interconnected through SIP trunk or the PBX’s exclusive built-in interconnection method.
The benefits of networking multiple PBX systems abound: you will be able to make free inter-office calls, share trunks among these offices to extend your available resources across your multiple locations, and maintain control of employees and costs. Greater redundancy can also be achieved as each PBX can work as a stand-alone system even if your VoIP link goes down.
But there are still obstacles lie ahead. Networking multiple telephony systems can be complicated via traditional way of SIP trunking. The necessity of port forwarding, static public IP address settings, and the number of SIP trunks to configure can be time-consuming and troublesome for the unprofessional. Thankfully, to remove these obstacles, some PBX providers offer easy solutions to intercommunicate multiple on-premises PBX. Yeastar S-Series VoIP PBX’s multisite interconnect feature allows you to connect your branches in minutes, and enjoy additional business-enhancing benefits like single dial plan across all sites, centralized call processing, seamless inter-office call transfer, enhanced network security and more.
Figure 1: Traditional Way of SIP Trunking vs. Yeastar Multisite Interconnect
3. Utilizing VoIP Gateway to Connect Remote Sites
If you have more than a few endpoints in geographically distributed offices and do not want to deploy extra PBX systems on remote locations, you may need to deploy VoIP Gateways to connect your headquarter PBX system and your phones in the branches.
VoIP gateway solutions are perfect for small business and branch offices with analog voice infrastructures to capitalize on the power of VoIP technology. FXS gateway provides support for the integration of analog endpoints; FXO gateway can integrate local PSTN (Public Switch Telephone Network) and allow remote headquarter office to make local calls, which helps save long distance charges; and GSM gateway could also offer local GSM trunk connectivity.
Typically, a VoIP gateway solution for branch offices can realize the following features: free inter-office calls, the use of corporate trunks for both inbound and outbound calls on branches and vice versa.
4. Moving to the Cloud
When a business spans more than one location, the complexity of maintaining a multisite phone system can present major challenges. A cloud communications system can free you from such trouble, as it serves all locations – large, small, global, and even at-home offices – via the internet. By moving to the cloud, IT managers can reduce or eliminate the need for dedicated staff to support remote locations. All-inclusive communications services are delivered seamlessly anywhere: direct extension-dialing, call transfer, unified communication and much more. As you can image, perfect for a company with a dispersed workforce.
Figure 2: Cloud Communications System for Remote Site and Mobile Workers
Dig Deeper on Efficient Branch Office Solution
Yeastar offers a complete range of cost-effective branch office solution. Whether it’s hardware in a server room or a virtual system in the cloud, you can find the right solution that offers the best features that fit your company size and type of business. Take a look and find the best solution for you now!