Essential Guide

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The VoIP basics every enterprise should know

Learn the VoIP basics, from building a VoIP infrastructure to moving VoIP to the cloud.


Many organizations are transitioning away from traditional voice services in favor of Voice over IP (VoIP). VoIP delivers voice traffic over the Internet rather than the legacy public switched telephone network (PSTN), which offers organizations cost savings, more advanced features and other benefits. But implementing VoIP is no small task and enterprises must be prepared to migrate their voice services with minimal disruption.

This essential guide covers the VoIP basics, from building the right infrastructure to taking security measures, to ensure your enterprise is prepared to successfully transition to VoIP.


Migrating from the PSTN

Making the transition to VoIP means migrating off of the PSTN. But enterprises must be ready for the migration or run the risk of downtime for their voice services. Learn how to make the necessary preparations, from picking a SIP trunking provider to installing an IP PBX, and how to know when making the transition is right for your enterprise.


Successfully transitioning from PSTN to VoIP

In this Ask the Expert response, Chris Partsenidis offers four steps organizations should take for an effective PSTN to VoIP transition. Continue Reading


Finding the right SIP trunking provider for your VoIP migration

Learn how using a SIP trunking provider can make the migration from the PSTN a seamless transition to VoIP. Continue Reading


Is PSTN or VoIP the best fit for your business?

This tech comparison breaks down the features of PSTN and VoIP, from scalability to business continuity, to determine which technology fits your business needs. Continue Reading


What enterprises need to know about PSTN vs. VoIP

The migration to VoIP has become inevitable as service providers end their support for PSTN. Learn what enterprises need to do to prepare for the transition. Continue Reading


Making the migration from PSTN to SIP trunking

Migrating from PSTN to SIP trunking involves more than adding a few more voice channels. Learn why the right SIP trunking provider and collaboration between network and UC teams is vital. Continue Reading


Building a VoIP infrastructure

VoIP requires a robust infrastructure and quality of service to support its bandwidth needs. An enterprise that hasn't prepared its infrastructure will end up with call quality issues like jitter and latency. Learn the VoIP basics to help you build an infrastructure that can handle all of VoIP's requirements.


Building a robust VoIP infrastructure

Learn the five things a VoIP infrastructure must support and why VoIP infrastructure must be placed on a separate virtual LAN (VLAN). Continue Reading


Prioritize the DiffServ model when setting up VoIP networks

Learn why the DiffServ model is the most popular quality of service model for VoIP networks. Continue Reading


VoIP systems require redundancy

Learn why redundancy must be an integral part of your VoIP and network infrastructure to maintain business and call continuity. Continue Reading


Five steps to prepare your network for VoIP traffic

This expert tip explains the five ways network managers can prepare their infrastructure for the needs of VoIP. Continue Reading


The fundamentals of VoIP infrastructure

Moving to a VoIP infrastructure is a significant shift from traditional voice services. Learn how VoIP infrastructure differs to take advantage of its benefits. Continue Reading


Moving VoIP to the cloud

Many enterprises opt for cloud-based VoIP when migrating from the PSTN to cut costs and take advantage of the expertise of a cloud service provider. But moving VoIP to the cloud is more complex than it seems. Learn how to prepare your network and clear the hurdles that prevent cloud VoIP deployments.


Inspect your networks before bringing VoIP to the cloud

Successfully implementing cloud VoIP requires preparing your network for the bandwidth, application prioritization and performance management needs of VoIP. Continue Reading


Cost savings, agility drive cloud telephony adoption

Learn what drives cloud VoIP adoption in small, midsize and large enterprises and what obstacles still prevent adoption. Continue Reading


Comparing SIP trunking and hosted VoIP benefits

Learn the difference between SIP trunking and hosted VoIP and how they can work together for cloud-based voice services. Continue Reading


Cloud telephony allures businesses

The advanced features and pricing structure of cloud telephony are luring enterprises away from on-premises voice systems. Learn the key features that enterprises want in a cloud voice system. Continue Reading


Securing VoIP

Enterprises that transition to VoIP face new security threats that were not common on legacy voice systems, like telephony denial of service attacks, toll fraud and VoIP hacking. But there are steps IT can take to protect their organization from attacks. Learn how to protect your enterprise from VoIP security threats.


Counter VoIP security risks with separate VLANs

Keeping data and VoIP traffic on separate virtual LANs can protect VoIP from security risks, but it's easier said than done. Learn how in this Ask the Expert response. Continue Reading


VoIP vendors up their security game

As service providers move toward VoIP services, they are adopting security measures to prevent threats like toll fraud and VoIP hacking. Continue Reading


How enterprises can be vulnerable to TDoS attacks

Learn the types of enterprises can are most at risk for telephone denial of service attacks and how to prevent them. Continue Reading


The five steps to secure VoIP

Learn the five steps every enterprise should take before rolling out VoIP. Continue Reading


VoIP security goes beyond firewalls

Learn how combining firewalls, encryption and proxy services creates a robust security strategy to prevent VoIP attacks. Continue Reading


Maximize VoIP encryption configuration

Learn how the proper configuration of VoIP encryption can protect your data inside and outside of the network. Continue Reading


VoIP terms to know

When implementing VoIP in your enterprise, there are important technology terms you must know. Learn the VoIP basics you need to know in our glossary.

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