What options are available to enterprises to connect their Voice over Internet Protocol (VoIP) systems to branch offices?
Ask the expert
Do you have a question for Michael Brandenburg or any of our other experts? Ask your enterprise-specific questions today! (All questions are treated anonymously.)
There are actually a number of different options available to link branch offices 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, it is important to consider branch survivability, the ability for remote sites to continue to make and receive phone calls if the WAN link is unavailable.
For very small branch locations with only a couple of endpoints, many unified communications (UC) vendors would likely recommend connecting endpoints through an E-SBC or VPN connection. For branches with more than a few endpoints, the next step is a branch gateway.
A branch gateway provides a WAN interface between the branch and corporate platforms, as well the option to utilize its own Session Initiation Protocol (SIP) trunking or public switched telephone network (PSTN) connection in the event of a WAN failure.
Recently, a third option has come to the forefront: hybrid cloud services. In a hybrid cloud, remote branches use cloud-based hosted UC services, which also interface with the on-premises corporate platforms. Hybrid services offer many of the benefits of branch gateways, including survivability, without the hardware footprint.
Learn more about connecting VoIP systems and branch offices:
- How Multiprotocol Label Switching (MPLS) can help connect VoIP systems and branch offices: Learn how MPLS helps connect a parent company to a branch office during a VoIP implementation.
- Linking VoIP islands with SIP trunking: Learn how SIP trunking opens up opportunities for linking VoIP islands, like branch offices.
- Integrating cloud-based UC for the branch office: Learn how branch offices benefit from cloud-based UC services.
Dig Deeper on VoIP Migration and Implementation
Related Q&A from Michael Brandenburg
What is the function of a SIP trunking service? Expert Michael Brandenburg explains how SIP trunks support IP-based voice communications.continue reading
When it comes to securing VoIP communications, should enterprises turn to SBCs or firewalls? Expert Michael Brandenburg explains how SBCs and ...continue reading
Is there a difference between SBCs and E-SBCs? IT expert Michael Brandenburg explains how the industry differentiates between the two terms.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.