"Our company has is very appreciative of the fast, immediate, and quality service provided by Sound Line Communications."
RW
Robert Wright
U.S.-based cloud VoIP — in business since 2008
Business Phone Systems
Built to Last.
Crystal-clear VoIP, unified messaging, and enterprise-grade reliability — all in one platform. No contracts, no hardware, no hassle.
7-day free trial • Card required • Auto-renews unless you cancel
Take the product tour
Watch a whole free trial: signing up, a first call, a text, a look around the workspace, and cancelling. We trimmed the waiting and kept every step.
Transcript of the product tour
This is SoundLine, a business phone system you run from your browser. In this tour we'll sign up for a seven-day free trial of the Growth plan, pick a local number, make and take a call, send a text, look around the workspace, and then cancel the trial, so you can see how every part works. We've trimmed the waiting, but every step is here.
The trial is seven days of Growth for up to 2 users, with one local number, 200 minutes of calling, and up to 50 outbound texts to up to 10 different numbers. Incoming texts aren't counted. A card and an ID check are required, and it's zero dollars today.
Signup starts with who's setting this up. You'll be the admin. The service address is where your phones live. It's how we calculate exact taxes and route 911.
Step two is a quick identity check. Our verification partner, Stripe, checks your government ID, so have a driver's license or passport handy. SoundLine receives the result. Your ID images stay with Stripe. This recording uses Stripe's test mode, so the check passes here without the camera step you would see.
Step three shows exactly what happens after your trial. If you don't cancel or switch to Starter before the trial ends, your Growth subscription starts automatically. You can switch plans or cancel in the portal at any time during your trial.
Step four is the card: credit or debit. Prepaid cards aren't accepted. Once the card is saved, three boxes cover automatic renewal, 911, and the terms. Then, Start my free trial.
Your trial has started. The page shows the date it runs until, and tells you to check your email to set your password.
Here's that email: Welcome to SoundLine, set up your account. It has one button, Create your account.
Choose a password, and you're in.
The first time you sign in, a wizard called Set up SoundLine walks you through six short steps. Business comes first: your time zone, and the physical address where you'll use SoundLine most of the time. It becomes your 911 address.
Next, your number. Your trial includes one local number. Search by area code, or by city and state. Numbers marked No texting yet can make and take calls, but can't send or receive texts yet, so we'll pick one without that label.
Call recording is your choice, and Growth includes a searchable transcript of each recorded call. Add anyone else who should make and take calls, and they get an email invitation. With two or more people, you also choose who answers. Then SoundLine finishes the setup, and you're ready to call.
Texting takes one more step: confirm your cell. We text you a six-digit code, and you type it in. Texting on your number is then set up. It can take about 15 minutes, and we'll email you when it's ready.
That covers your trial number. When you continue as a customer, your business registers its own texting campaign, and texting resumes once it's approved. Approval depends on your website being ready, so start early.
And it all goes with you. The SoundLine mobile app is on the App Store and Google Play, and the setup wizard shows a QR code for each.
One thing to know, so it doesn't catch you off guard. The setup wizard ends with a card called Secure your sign-in, where you can add a passkey or set up an authenticator app. It isn't required during your trial. Once the trial becomes a paid plan, you'll be asked to add a second step on the next page you open.
Open the workspace dialer, enter a number, and call. The call goes out from the browser, and a real phone rings.
Calls to your new number now ring your team. When one comes in, a banner appears with two buttons: Answer and Ignore.
While that happens, let's look around. When a caller leaves a voicemail, it lands in your voicemail inbox and in your email. With transcription on, you also get a short summary and the full transcript.
Recorded calls get the same treatment on Growth: a transcript, and a short summary of who spoke and what the call was about.
For quick questions and setup changes, ask Echo, the SoundLine AI assistant. Echo can look up your extensions and phone numbers, and for an account admin it can change things like call forwarding, voicemail, phone menus and department hours. It tells you what it will change before it changes it.
Meetings holds your video meetings, upcoming and past, with recordings. The calendar keeps events, meetings, and your booking page, with a booking link you can copy and share. And your recent calls are right there in the dialer.
Your team works here too. Channels are group chat for teams and topics, and direct messages are one-on-one. From Meetings, start an instant video meeting, or schedule one and invite people.
As you grow, the account grows with you. Set up departments that ring a group of extensions during open hours, and call queues for your busier lines. After you upgrade, you can add more users, and order desk phones that arrive ready to plug in.
Across the top of every page, the trial banner keeps count: days left, minutes used, texts used, and the date the trial becomes a paid plan unless you cancel or switch.
Texting is ready. Send a message from your business number, and the reply lands in the same conversation.
Last, cancelling. In the Billing Center, the card called Your free trial has a Cancel trial button. Confirm it, and that's all: your trial is cancelled. It keeps working until the end date, and you won't be charged.
That's SoundLine, from signup, to first call, to cancel. Start your own seven-day free trial of Growth at soundline.io.
Why businesses choose SoundLine
We're not a startup. We're a proven partner with nearly two decades of experience keeping businesses connected.
Four-Nines Reliability
We target 99.99% uptime, and Enterprise agreements can include a written SLA. Geo-redundant data centers and automatic failover mean your phones just work — even when the unexpected happens.
Real People, Real Support
Reach a U.S.-based engineer who knows your system — not a call center script. Phone support runs Monday–Friday, 8am–6pm PT on Growth and above. Every plan gets ticket support — open one in the portal or just email us — and 24/7 emergency phone support.
No Contracts, Ever
No multi-year lock-in. Cancel whenever you like and service runs to the end of the period you have paid for. We earn your business every month by delivering a platform you'd never want to leave.
One Platform. Everything Included.
Replace five subscriptions with one
SoundLine brings calls, messaging, meetings and scheduling together on Growth. Manage each separately billed business from one portal and mobile app login, at the same per-user plan rates.
-
Cloud VoIP calling unlimited US & Canada, crystal-clear audio, any device
-
Video meetings up to 200 participants on Growth, screen share; recording with Elite (coming soon)
-
Team messaging & SMS internal chat, business texting, file sharing
-
AI-powered tools call transcription and summaries after each call; sentiment analysis with Elite (coming soon)
2008
In business since
99.99%
Uptime target
0
Contracts required
24/7
US-based Emergency Support
Everything your team needs
The features your team actually uses, with the plan each one lands on stated up front.
Auto-Attendant & IVR
Greet callers with a professional menu and route them to the right department instantly. Build multi-level call flows with a simple visual editor.
Intelligent Call Routing
Route by time of day, caller ID, or skills. Ring groups, call queues, and simultaneous ring keep every call answered by the right person.
Video Conferencing
Host video meetings for up to 200 participants on Growth and above (Starter video calls take up to 5) — no separate app or subscription needed. Screen sharing included; meeting recording comes with Elite (coming soon).
AI Call Transcription
Recorded calls are transcribed after each call, with a summary and action items, on Growth and above (transcription is a Starter add-on). Sentiment scores arrive with Elite (coming soon).
Open API & App Integrations
Connect anything with our REST API and webhooks, documented in your portal. Slack and Microsoft Teams pick up call and voicemail notifications today. Salesforce and HubSpot CRM sync is in final testing — coming soon.
Mobile & Desktop Apps
iOS, Android, Windows, and Mac softphone apps give remote and hybrid employees a full-featured business phone on any device, from anywhere.
Up and running in minutes
No technician visits, no hardware to rack. Set up your entire phone system from any browser.
1
Reserve your spot
Tell us about your team on the Pricing page — we'll set up your account personally and assign you a local number.
2
Configure your system
Add users, set up your auto-attendant, and build call flows from the web portal. Our onboarding team is on standby if you need help.
3
Go live & port numbers
Start making and receiving calls immediately. Port your existing numbers to SoundLine with zero downtime — we handle the entire process.
Built for founders who run more than one thing
Multi-account is on every plan, so one login covers every company you own — each with its own numbers, users and routing.
Your First Company
Get a real phone presence in minutes — business number, auto-attendant, voicemail-to-text — without buying a single desk phone.
Every Company After That
Add the next business to the same login. Its own account, numbers, users and call routing, kept separate. Each business is billed separately at the same per-user plan rates, with one portal and mobile app login to manage them all.
Portfolio Operators
Switch between the businesses you own in a click. Per-location numbers and routing, roles set per business, and staff who work across your companies keep one login. No vendor to re-negotiate with each time.
The Next Venture
Spin up numbers, a menu and a team the day the idea lands. Nothing to procure, nothing to install, nothing to unwind if it does not work out.
Not sure which plan fits? Use our cost calculator to estimate cost, or talk to our team for guidance.
Trusted by businesses everywhere
Don't take our word for it — here's what our customers say.
"We've been using Soundline for all of our phone services for years now. I recently made the terrible mistake of going to an Ai communication company b..."
MP
Michaela Pollard
"JJ was super helpful and professional. Management team should consider giving him a raise!"
RP
Roman Pastuszychyn
"Now that I was contacted by Victoria Petrosyan in person she resolved the issue for me regarding the new System not allowing me in to pay via website...."
DD
Darylene Dennon
"Excellent Service every time."
KM
Kevin M Gracey
"We have used Soundline's VOIP service for many years now. We always have crystal clear calls and no downtime. When we have had issues with the phones ..."
CN
Curt Nelson
"Soundline's set up is seamless, and their customer support is excellent! I highly reccommend Soundline Communications."
RC
Rachelle Costello
"Victoria was patient, kind and effective!"
DR
Dorothy Rodes
"Definitely went above and beyond to help with a new router installation. Great to do business with for sure.Thanks!"
BH
Brian Hendew
"Excellent company and very responsive to providing assistance. Superb customer service and products. Highly recommend businesses to consider this co..."
SH
Steven Hemmat
"Have used their phone service for several years and it is top notch. Good pricing, great service, tons of features, easy to use. The staff is great..."
CJ
Cameron Johnson
"I've used Soundline Commination's service for the last 4 years and am very pleased with their excellent customer service, technology & features advanc..."
MR
Michael Roberts
"Customer for several years. Very pleased. Much better than traditional land line."
MF
MI FM
"The best business partner decision we've made. Incredible customer service, tireless staff - not to mention the great pricing and features offered..."
BM
Bob Morgan
"As a small business man, I find myself having to occasionally ask favors of my vendors. Never in my 25+ years in business have I come across a compan..."
SK
Spencer King
"The service has been great!!!! Quick responses when we need changes to our account. The call recording feature was something we were missing, now it m..."
HP
Hunts Plumbing
"The crew at SoundLine has consistently gone above and beyond in service and prompt delivery. When we initially started using SoundLine's VOIP service ..."
NC
Noah Conquergood
"It was a pleasure working with these guys. It was nice to work with and support a small local business instead of navigating the headache that is a m..."
G
gabrielle
"Friendly and knowledgeable staff; small town personalized service."
DK
David Kirwan
"Best customer service. We have had a VOIP service within our company through Ring Central for a while now and have faced problems with call quality, p..."
HP
Hassan Packin
Frequently Asked Questions
Everything you need to know about SoundLine
What is VoIP, and how does it work?
VoIP stands for Voice over Internet Protocol. It allows you to make and receive business calls through an internet connection instead of a traditional telephone line.
When you speak, SoundLine converts your voice into digital data and sends it over the internet to the person you are calling. Customers can still reach you using a normal business phone number, and you can call traditional landlines and mobile phones just as you would with a conventional phone service.
How is VoIP different from a traditional business phone system?
A traditional business phone system usually depends on physical telephone lines and may require specialized equipment installed at your office. A VoIP system operates primarily through the internet and is managed through the cloud.
With SoundLine, your employees can use desk phones, computers, mobile applications, or a combination of devices. Changes such as adding an employee, updating a greeting, or modifying call routing can generally be made without installing new telephone lines or replacing an entire phone system.
Can I keep my existing business phone number?
In most cases, yes. SoundLine can help transfer, or port, eligible local and toll-free numbers from your current telephone provider.
To begin the process, we will usually need information from your existing account, including the account holder’s name, service address, account number, billing telephone number, and a recent invoice. We also require a signed Letter of Authorization.
How much does SoundLine business phone service cost?
SoundLine plans start at $14.99 per user, per month when billed annually, or $19.99 month-to-month.
Your total cost will depend on factors such as:
- The number of users and extensions
- The number and type of telephone numbers
- Calling and messaging requirements
- Desk phones or other equipment
- Premium features and integrations
- International usage
- Contract term or billing frequency
- All applicable taxes
Can I make and receive calls from my computer or mobile phone?
Yes. With the SoundLine portal and mobile applications, employees can make and receive business calls without being at their desks.
Calls placed through the application can display the company’s business number rather than the employee’s personal mobile number. Employees may also be able to access voicemail, business messages, contacts, call history, and presence information from the same application.
The mobile application requires a suitable cellular data connection.
What equipment do I need to use SoundLine?
At minimum, you need a reliable internet connection and a supported device.
You can use SoundLine with:
- A compatible VoIP desk phone
- A desktop or laptop computer — our web phone runs right in your browser. Nothing to install and nothing to set up: sign in and start making and receiving calls.
- The SoundLine mobile app for iPhone and Android — included with every plan, so your business number travels with you.
A desk phone is optional for many businesses. Plenty of teams work entirely from the browser and the mobile app.
All your businesses, in your pocket.
SoundLine gives founders everything their companies need to communicate — phones, messaging, meetings, and AI — in one place. Start your next venture in minutes, not weeks.
Transparent pricing — fees shown upfront
No setup fees
No long-term contracts
Live within minutes