Phones are not just a commodity. We do voice connections and support the right way.

YellowFiber Gets You Connected

We’re the best kept secret in the DC tech community.

100% Uptime

We offer a 100% level of service guarantee with every connection we sell and we’ll even provide a speed test. Our reliability and performance will spoil you.

Better support

Our technical support is better for one very simple reason. We only hire highly qualified engineers on our team and we guarantee you’ll get a response within 24 hours.

Our Lightning-Fast Network

The YellowFiber network was architected for speed and maximum reliability. We aren’t the biggest provider, but we sure are one of the most reliable.

What is Hosted VoIP or Hosted PBX?

Hosted PBX or Hosted VoIP (Voice over IP) is a phone system solution that uses your internet connection and the power of the cloud to provide your business with feature-rich voice solutions – usually with more reliability and lower costs. No need to manage expensive equipment or hardware on-site. We manage and maintain the complete system and make sure it works so you can stay busy managing your business or taking care of more critical IT projects. Whether you’re a small business or an enterprise, YellowFiber has a solution custom designed for you.

Yellowfiber VOIP

We’re better and faster.

Significant Savings

Our VoIP solutions, backed by our own nationwide network infrastructure can save you 50 to 60% on your current monthly phone expenditure. The bottom line is what it is.

Better performance

We are a solutions-focused, engineering-first company. We take a genuine interest in your requirements and needs, and we are entirely committed to delivering VOIP service that is more reliable and better quality than your starting point.

Still not convinced? Here is another one:

Support that will blow your socks off

If something goes wrong, we will send the cavalry directly. Our engineers average 15 years of experience, and our response times are excellent.

Phones are Anything but a Commodity

In recent years, the cost of telephones and VoIP service have come way down. However, telephony is still a critical tool that your users rely on, and not all carriers are the same. YellowFiber is a solutions focused company. We take a genuine interest in providing top level quality of service — but our prices absolutely remain competetive. 


Combined with our Dedicated Internet Service, you recieve a highly resiliant on-net voice platform.

Standard Features

Business Features

Unlimited Calling

Unlimited Local and Long Distance calling phone service reduces your phone bills.

3-Way Calling

It’s simple to add a third person to your two-way call to instantly create a 3-way conference call.

Call Forwarding

When it comes to call forwarding, you need maximum flexibility. You might want to forward calls one way if you’re on the phone, another way if you don’t pick up. You can customize your call forwarding rules just the way you want them.

Caller ID

With Caller ID, you can identify who’s calling before you pick up the phone. The number and name (if available) of incoming call appears on your display. You can also customize your external caller ID for your business. Set it up so everyone has the same company name, or personalize it by extension.

Caller ID Blocking

Allows you to block (and unblock) your Caller ID on outgoing calls.

Call Waiting

Call Waiting allows callers to reach you even when you are on the phone with another call.

You will hear a beep indicating an incoming call. You will then be able to put your current caller on hold and answer the new call. You can continue to alternate between parties as often as you’d like. It’s like having two lines while paying for only one!

Call Transfers

Now you can transfer calls with ease. Choose either warm transfer or cold (or blind) transfer. With warm transfer, you announce the call to the person you are transferring the call to. With a cold transfer, you send the call directly to the extension without announcing it.

Call Park

With Call Park feature, you can “park” a call in the cloud so other employees can pick up the call. A parked call can be picked up by any extension in your organization.

Direct Phone Number

Each YellowFiber extension includes its own unique direct inbound dial (DID) telephone number. YellowFiber allows you to choose your number from any of the available rate centers and area codes within those centers, regardless of where your YellowFiber phone will be physically located. So you can pick a phone number with an area code that’s right for you.

Do Not Disturb

When you need quiet time to finish a project, put your telephone in a state that will not ring and calls will automatically be forwarded to voicemail (or to a busy signal if voicemail is turned off). Do Not Disturb (DND) is a great feature for when you are on a conference call, having an important conversation or just need to stop multi-tasking and focus.

Group Call Pickup

Group Pickup (or Group Call Pickup) lets employees answer incoming calls for other group members.

Group Intercom Paging

Group intercom paging is useful for making real-time announcements to a department, team or work area using the intercom feature on your Polycom phones. Intercom to specific paging groups or broadcast your page to all other Polycom sets in your office by choosing the emergency or priority group.


Use our powerful business-class voicemail feature to view and listen to your voicemails online, have them delivered to your email box, or access them by phone.

Voicemail to Email

Voicemail-to-email is great way to save time and be more responsive to your clients. Your voicemails are delivered right to your email box as audio files so you can listen to them right away.

Phone System

Auto Attendant

Auto Attendant is a powerful automated VoIP business service that replaces the need for a receptionist.

Extension Dialing

Call anyone in your company just by dialing their extension number, even if they work in different locations with extension dialing.

Hosted PBX

A virtual PBX is the modern alternative to costly, clunky PBX equipment that is tied to one location. Unite your whole company with a virtual PBX that is hosted in the cloud.

Ring Groups

A Ring Group is a way for a group of extensions to share the distribution of incoming calls. Ring groups are also commonly known as Hunt Groups.

Directory Assistance

YellowFiber gives you the option to add your company name and telephone number to a Directory Assistance Listing provider.

Number Porting

Bring your phone numbers with you when you switch to YellowFiber.

System Management

Music on Hold

Music on Hold plays recorded music or marketing messages while your callers are on hold to give your business a professional edge.

Administrative Portal

With YellowFiber, you get an easy-to-use administration portal. Here setting up and configuring your phone system, setting up extensions, Auto Attendant, and Ring Groups and more.

System Operation Times

Set business hours and after hours times.

Enhanced Features

Personal IVR

When the caller makes a into the Personal IVR, they will be given the option to connect or to leave a voicemail. If connected, the caller will be asked "who is calling please?" After responding. the caller will hear ringing, or, if the caller has chosen the voicemail option, the call with go automatically to voicemail.

Remote Access

Remote Access allows mobile/cell users to call the system on one of the DIDs in order to be called back, user enter their extension/PIN. After successful authentication, users can dial any destination for which users normally have privileges.

This feature is intended for users travelling frequently or working remotely.

Call Detail Reports

Call Detail Reports (CDRs) can be accessed for every DID, and will display all inbound and outbound calls.

Additional Features

CRM Integration


SugarCRM enables businesses to create extraordinary customer relationships with the most innovative and affordable CRM solution in the market.


Build more meaningful and lasting relationships and connect with your customers across sales, customer service, marketing, communities, apps and analytics.


Customer service software and support ticket system by Zendesk. Web-based help desk software used by 200000+ organizations worldwide.


Run your entire business with Zoho's suite of online productivity tools and SaaS applications. Over 20 million users trust us worldwide.

Microsoft Dynamics CRM

Microsoft Dynamics CRM solution allows you to create a centralized repository of data that sits alongside Microsoft Office and Microsoft Office Outlook.

Conference Calling

Conference Bridge

Why waste money on outside conference call providers when you can hold your conference calls with your Hosted VoIP Service

Phone Numbers

Toll Free Numbers

A Toll-Free Virtual Number is an inbound number that rings to your auto attendant, ring group or primary phone line. US callers can call your toll-free number at no charge to them.

Virtual Numbers

A Virtual Phone Number is a number that rings to a primary phone line. A Virtual Phone Number eliminates long-distance toll charges for anyone calling within that number’s area code. Virtual Phone Numbers are available for most area codes.

Fax Solution

IP Fax

YellowFiber's fax over IP solution is based on the T.38 ITU standard for sending faxes across IP networks.

Fax Machine

Fax services work with standard fax machine brands. Our solution connects your fax machine to the Internet via an analog terminal adapter (ATA).

Call Recording

Record Calls

YellowFiber offers multiple options to enable call recording. defining whether you would like to inform call parties that call recording is turned on or not. Call recording can be enabled globally, for entire system, or lower level per specific users, DID, extension, and ring groups.

Softphones and Desktop Apps

Unified communications as a service integrates voice, messaging, and collaboration functions to deliver a complete, integrated business communications solution. By offering an all-in-one solution from a single vendor, unified communications can help keep your company’s productivity high, while keeping your total cost of ownership low.

Additional Resources


A visual approach to the services that we offer from colocation to network security. We provide explanations that will lead to a feasible decision.

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