
An Affordable, U.S.-headquartered VoIP Phone Manufacturer.
Grandstream has been connecting the world since 2002 and these solutions are relied on by businesses in over 150 countries around the world. Designed with the look of modern simplicity, Grandstream phones blend beautifully into high-end home and office decor. Video intercom capability, Google automation integrations, and personal customizations provide a complete experience matched by no other.
Headquartered in Boston, Mass., Grandstream is a forward-thinking company focused on research and development to deliver the most innovative products to the global market. Grandstream products are held to the highest standard and designed based on the needs of the market with our customers in mind, then manufactured with high-quality materials to provide customers with top-quality solutions.
Room to Grow
Protect your investment with a system that grows as your business grows. Begin as small as 1 site with 2 lines and 2 phones, expandable to multiple sites with up to 1000 phones all working together.
Simplified Maintenance
With its built-in web browser programming interface, you or our technicians can easily, and often remotely, make any programming changes whenever needed.
Click-to-Call Convenience
Communication Assistant software seamlessly integrates with Microsoft® Outlook® allowing users to easily dial contact phone numbers, receive incoming call pop-up alerts, drag-and-drop conference call management.
Calls Arrive in Order
Receive more calls than you can answer? With optional call queuing, the system will answer and ask the caller to wait on hold or offer options to direct their own call to an extension or voicemail.
Mobile Phone Integration
No need to have multiple contact numbers for people who also use a cell phone. Integrate cell phones with your new communications system and use cell phones like office extensions.
Best Return on Investment
Managers can know who is calling who, which employee is the most productive, and identify trends for discovering new business opportunities.

GXV3480 8-inch Touchscreen Video Phone

GXV3470 7-inch Touchsreen Video Phone

GXV3450 5-inch Touchscreen Video Phone

GXP2170 Advanced IP Phone

GRP2616 IP Phone

GRP2615 IP Phone

GRP2614 IP Phone

GRP2612W IP Phone
Your new phones can use the existing computer Ethernet cabling, or we can repurpose your old telephone wiring from a previous digital on-premises phone system. This flexible approach reduces costs, making setup fast and affordable. It’s unique to PhoneWire.
Never Settle for Second Best.
Grandstream has been connecting the world since 2002 with unified communications and networking solutions that make communicating more impactful than ever before. Our award-winning solutions provide everything needed to build a seamless, easy-to-manage communication platform, offering a one-stop-shop for all networking, unified communications, collaboration and physical security solutions.
Since it entered the market, Grandstream has disrupted old monopolies, demonstrated manufacturing excellence, and revolutionized the telecommunications industry globally. One thing is certain: Grandstream gets it right.

There’s So Much More to Grandstream!
Connect with us to find out if the Grandstream business phone series is right for your office.
You’re one step away from seeing why we’re considered the best value in telephone systems. All we ask is a little information to get started and we’ll prepare your custom quote, same day.
What Our Clients Say.

I am extremely satisfied with his cooperation and dedication supporting our personnel when needed, guiding them to succeed while implementing new systems.”
★★★★★
Eduardo J. Vera
Executive Director
Language Access Multicultural People
Catholic Charities Foundation of St. Louis



Frequently Asked Questions.
Can you install this new system for me?
Yes! We have a thousands of qualified installation technicians available throughout the United States to unbox and install it all — headache free. Check our address lookup tool and see for yourself!
Or, some of our customers choose to install the system themselves with our “remote access programming and initial configuration setup” option. It’s entirely your choice — whatever option fits you.
Will my phone number be compatible?
Yes, most likely. This phone system is compatible with almost any telephone number, whether that’s provided by analog telephone lines or digital. For best performance, upgrade your phone number with our total solution for enhanced capabilities and advanced support.
What is the warranty period?
With an industry-leading, three-year limited warranty, you can focus on growing your business. Optionally, the warranty can be extended to five-years for a very small cost. Ask us to include the option in your proposal.
What about maintenance and support?
PhoneWire is a certified partner with best-in-class, U.S.-based product support team. When you purchase your system, you can optionally add our Maintenance and Support Subscription to make sure you keep your new system running smoothly with all the latest features and software upgrades, as well as knowing any technical support or programming changes are included.
Why should I work with a smaller company?
Some people feel that purchasing from a large company is a safe bet, but that’s not always the best bet. Ever wait on hold for their customer support?
Smaller companies (like ours) generally give much better customer support because we know our customers by name. We compete well against the big guys, but our U.S.-based support is better in expertise and more personally invested.
Does this system integrate with other business software applications, like Webforms or ZenDesk?
Yes, we integrate with several CRM, dispatch, and Helpdesk applications like ZenDesk, for example. Give us a call to discuss your requirements.
Do you offer financing payment options?
Yes, we do offer financing through our select lender partners. Our financing options make your upgrade easy to implement while also respecting your available budget. Please do not hesitate to express your interest in our financing options and we can discuss which offers are available.
We Know Phones.
I’d love to answer your questions and share my expertise. Based on what issues you are trying to solve, I can explain what telecom system I’d recommend and which brands have the best reputation. Let’s talk soon!