What Is Voice Over IP?

Voice Over IP converts Voice calls over the IP data network analog voice signals into digital data packets and supports real-time, two-way transmission of conversations using Internet Protocol.

As the pace of unified communication adoption increases, Interconnects and MSPs may find themselves struggling to keep up with both the demand from customers and the changing nature of business. One complicating factor can be a complex language that is used in the industry. It’s easy to find yourself drowning in a sea of jargon. To help combat that, PH-IT VOIP has put together a Glossary of Unified Communications Terms.

How To Switch To Voice Over IP?

Interested in switching to Voice Over IP PH-VOIP? Call PH-VOIP at (714) 460-0829 to receive a customized quote detailing the benefits of utilizing our innovative products and services. When you’re ready, we’ll install your new phone system with ZERO downtime, so you can get back to business.

PH-IT VOIP Service | Voice Over IP

Features and Benefits

40% Savings Over Traditional Phone Systems.

PH-IT Solutions is a rapidly growing Managed IT Services provider that is different from other similar providers in the market of IT not only in our experience but also because of our business model to build one to one managed service that is totally designed to work for your business needs and budgets, we provide a proactive IT Managed service that work the best only for your business, At PH-IT we analyze your business operations to determine the needs that your business require to function smooth and fast.

Business Continuity

Virtually eliminate business downtime should your local area network (LAN) or wide area network (WAN) communications network go down. Your communications solution is still running in our cloud environment, so your customers, vendors, and employee calls can keep flowing. A good disaster recovery plan will help your business in good times and bad. With our solution, a good business continuity plan is extremely cost-effective, and readily available based on your individual business needs.

Configuration Flexibility

Our reliable, feature-rich hosted phone services adjust as you need them to. We make it easy for our customers to deploy the communication apps and solutions that your business needs, creating an in-office experience right at your fingertips, wherever you are on whichever device you choose. Commonly used features include: full call center capabilities, listen live, find me follow me, and more.

Mobility Mastered

Mobility is paramount in today’s business world. Keep your company connected with a wide array of mobile features—from cloud extensions, find-me follow-me, group, and simultaneous ring, to voicemail to email, and much more. All designed to help you conduct business anywhere through any device.

It also allows users to make and receive calls from enterprise and personal mobile phone numbers by automatically selecting the best network (Wi-Fi or cellular) to optimize cost, call quality, and battery life.

Cloud Communications

Voice and data communications over the Internet. All applications, switching, and storage is hosted by a third-party outside the organization and accessed over the Internet. With cloud communications, there is no major capital expenditure for an in-house PBX system and ongoing costs are more predictable than with a traditional premise-based solution.

Auto Attendant

Basically, this is a virtual receptionist. Auto-attendant allows callers to be automatically transferred to an extension without the intervention of an operator. They typically have a simple menu system and are customizable.

Supportive Staff

We’re here to support your business at every level with our always-available, skilled and professional support team. We’ll help you with your specific needs and concerns while giving you the personalized customer support you won’t find anywhere else.

Customer Tested

Our products and services are customers tested and approved—we’ve enabled countless businesses to improve their communication channels easily, and effectively, to transform their business into a competitive powerhouse. With a full range of front and back-office features, you can rest easy knowing your business is taken care of, now and for the future.

Computer Telephony Integration

“CTI” It’s a Technology; that enables integrated interaction on a telephone and a computer. such as click-to-call and screen pops.

Real-Time Transport Protocol

“RTP” An IP standard for delivering audio and video over IP networks.


“Reliability” is determined by calculating how often the system fails compared to the percentage of the time that the system is available. The system should be available at least 99.999 percent of the time.


Stands for “Responsible Organization” the process of transferring “Toll-Free” telephone numbers from one carrier to another.

Post Dial Delay

“PDD”— The interval between dialing the last digit of the called number and hearing the ringback tone.

Presence Status

Or just “Presence” for short. This is the ability to see a colleague’s presence status – whether they’re in the office, away from their desk, etc.

Public Switched Telephone Network

“PSTN” The network of the public circuit-switched telephone lines, which allows any phone in the world to connect with any other phone.

Quality of Service

“QoS” a measure of the overall performance of the network. It takes into consideration factors such as error rates, bandwidth, throughput, transmission delay, availability, and jitter.

Products and Services


The communications industry is undergoing an unprecedented phase of technological innovations. Cloud communications products and services continue to flip the industry on its head, putting you in control.

These solutions enable your company to leverage the latest features and capabilities, which are extremely easy to use and very cost-effective. Experience explosive growth through a proven business model and cloud service platform that allows companies like yours to utilize high-value software and services; For example, Hosted PBX and VoIP, SIP Trunking, Unified Communications, and much more.


Easy to use, Feature-rich, and Future-proof. That’s what you get from us right out of the box. Easily accessible via any modern web browser or mobile device, our feature-rich platform helps to improve your communications, streamline your business processes, and facilitates your growth and success. In addition, our support for our customers is second to none, and our experienced support team endlessly strives to enable you to compete and win, and sound good doing it.
As your needs grow and change over time, so do our features and capabilities. Endlessly scalable, flexible, and reliable, our cloud communications platform is truly future-proof, so you can focus on your business, and know that your communications solution will always remain relevant and competitive.

Hosted PBX and VOIP

When we say “hosted” we mean that the hardware and PBX are hosted at an off-site location; from where the VoIP telephone service is being used. Many businesses are embracing Hosted VoIP; because it provides robust communications, cost certainty, and future-proof their business while eliminating major capital expenditures for new in-house phone equipment.

You want a reliable, high-quality phone system that simply works. And so you can focus on your business, and not your communications platform, our system adapts and adjusts to your needs and seamlessly works the way you do. Whether you have Five “5” or Fifty “50” employees, we have a solution that meets your needs.

  • Easy to use and manage.
  • Full PBX capabilities utilizing easy interface.
  • Eliminate the costs of a traditional phone closet.
  • Low monthly phone bills (including VoIP Services).
  • Future-proof your phone systems.

SIP Trunking

Session Initiation Protocol “SIP” is a text-based signaling protocol used to control multimedia communication sessions over IP networks. SIP handles call controls such as ring, hold, transfer, conference, etc.

We offer SIP Trunking (connecting your premise-based phone system via an always-on broadband connection) solutions for any sized-business—whether you’re a small business looking for the flexibility and cost savings of VoIP or a mid-sized business looking for business continuity, disaster recovery, and unlimited or metered calling plans. We help you save up to 40% over traditional telephone line services.


This stands for Customer Proprietary Network Information. This is the data collected about an individual user’s calls, such as the time, date, duration, and destination number of each call.

Virtualization (VPN & VLANs)

Virtualization allows companies to consolidate servers, increase operational flexibility, and deliver higher application availability. Virtualization utilizes a group of servers in a way that allows for running multiple operating systems simultaneously on the same machine.

Virtual LANs (VLANs): Used to “logically separate” devices and departments on the same Ethernet wire.

Virtual private network (VPN): A private network extended across a public network, i.e. the Internet. It enables the sharing of data across public networks in a typically more secure and functional way.

Customer Relationship Management

“CRM” is software that manages all aspects of an organization’s interactions between customers and prospects. It creates a heightened level of accessibility; So, A unified communications solution can make a CRM system more accessible across an organization

Denial of Service

DOS attacks are favorites of hackers, criminals, and other trouble-causing types. A DOS attack is an attempt to make a network unavailable to its intended users.

Direct Inward Dial

DID is used for call routing. Through DID, external callers are able to contact a user directly at their unique phone number.

Find Me, Follow Me

Generally, this is used as a call-forwarding feature. It improves worker productivity and customer service by ensuring that every call reaches the right person, regardless of where he or she is working.

Computer Telephony Integration (CTI)

Technology that enables integrated interaction on a telephone and a computer, such as click-to-call and screen pops.

Click to call & Caller ID

Click to Call is The ability to initiate a phone call from the contact list on your computer; with the click of a mouse.

On the other hand; a Caller ID is used to allow the called party to see the calling party’s name; and telephone number before picking up the phone.


A key security feature that you’ve almost certainly heard of. The firewall sits between two networks, such as a company’s internal network and the Internet, and prevents unauthorized people from accessing the internal network.

Fixed-Mobile Convergence

“FMC” This is exactly what it sounds like – the convergence of the fixed and mobile networks. FMC solutions integrate cellular services with private communications networks, whether they are wired or wireless.

Frame Relay

A cost-efficient method of data transmission for intermittent traffic between LANs and between end-points in WANs. They’re less expensive than private leased lines because the carrier shares the frame relay bandwidth among many customers. This can have a negative impact on quality, and therefore requires detailed attention to engineering the solution.

Instant Messaging

“IM” Real-time communication over the Internet using text-based messages. Popular consumer-facing examples include G-chat, AIM, and iMessage. IM is usually a central feature of unified communications.

IP Phones

IP Phones plug directly into the network and perform analog-to-digital and/or digital-to-analog conversions.

IP Telephony

More commonly referred to as Voice over IP (VoIP). IP telephony uses the IP network to carry voice communications, replacing the public switched telephone network.


Internet Telephony Service Provider. A company that provides VoIP services. We usually break them down into Interconnects, MSPs, and Carriers.

Session Border Controller

“SBC” Network device used to register, setup, control, and tear down VoIP multimedia communications sessions. An SBC ensures that only approved traffic passes into the heart of your business. An SBC also hides your internal network and your user’s IP addresses from the outside world, which provides additional security protection. 

Unified Messaging

The integration of email, SMS, fax, voicemail, and video messaging into a single interface that is accessible from a variety of devices. It simplifies the user experience because all types of messages are stored in one place.

Mobile Device Management

“MDM” software secures, monitors, and manages mobile devices. It’s used to enforce data and configurations for mobile devices and includes the ability to lock or delete data from a lost or stolen mobile device.


In VOIP, voice is converted into data packets that are transmitted over the IP network and then reassembled into voice by an endpoint VOIP device.

Packet Loss

“Packet Loss” occurs when one or more packets of data fail to reach their destination, resulting in a metallic sound or conversation dropouts. It can be caused by network congestion, distance, and poor line quality. Excessive packet loss is perceived as broken or missing communication.

Service Level Agreement

“SLA” Part of a service contract that defines the level of service. An SLA for voice quality typically includes call completion rate, PDD, and some measure of voice quality

API Integration

Application Programming Interface. An API allows two applications to communicate. It’s what enables data to be seamlessly distributed to different applications on different devices in different locations, and then updated and manipulated in real-time. They’re at the heart of cloud-based Unified Communications.

Do you utilize applications like Microsoft Outlook, Salesforce.com, or a 3rd party web application? We’ve created several very useful plugins and applications to help you with key features like click-to-dial, screen pops, call logging, and presence. The Operator console leverages our API, and delivers all this and live visibility into your account for call control, call parking, visual voicemails, and other third-party applications. Additional API features and integrations are also on their way.


The Communications Assistant for Law Enforcement Act “CALEA”. This relates to electronic surveillance, which has been a very hot topic since 2013. The Act requires that carriers and manufacturers enable their equipment, facilities, and services to ensure that they have built-in surveillance capabilities so that federal agencies can monitor communications.

Unified Communications

Unified Communications (UC) is the seamless integration of voice, presence, chat, data, applications, and other technologies that help drastically improve your communication processes and business productivity. Our software and services enable you to access your account and seamlessly incorporate our high-value cloud communication services.

  • Cloud Communications: Virtually limitless configuration possibilities to configure how you setup your hosted PBX and VoIP solution to make and take calls.
  • Operator Console: Helps enable your small to mid-sized business to maintain complete visibility and transparency across the enterprise, and use view extension presence, click to dial, manage call control, monitor and manage call center features (queues, Agents, callers), manage conference bridges, and much more—all through a standard web interface.
  • Scalability: With the constant change in technology, scalability is huge in today’s business world and with UC, your services can be provided on a per-customer basis, cutting down unnecessary costs.
  • Disaster Recovery: Your business can rest easy in a local service emergency with the use of hosted UC, where your data can be backed-up, managed, and ready for rapid recovery.