





Enterprise-scale Cisco IP PBX with SIP Express Plus phone service & lifetime warranty — priced right, and set up, run, and managed for you.
★★★★★4.8/5(6 reviews for this system)Shopper Approved →Every system is customized to your needs. Request a proposal for your exact configuration.
🚚 Free standard shipping · In-stock systems ship in 3–5 business days · custom-configured systems may need extra lead time
If you're running an office or facility with 75 to 100 phones, the cloud math has probably stopped making sense. At $30 a user, a 100-seat cloud system runs about $180,000 over five years — and you never own a thing. Miss a payment and the phones go dark.
This system is the alternative: a complete, enterprise-scale Cisco IP PBX sized for 100 desks, with SIP Express Plus phone service included. It's the same class of hardware Fortune 500 networks run on — priced right for a company your size. You get reception phones, sidecars for busy front desks, wireless handsets for roaming staff, and an auto-attendant that routes every caller to the right department.
And you don't set any of it up yourself. A Certified Network Specialist configures your system before it ships, finishes the setup remotely, and manages it from there. No monthly rent — that's why it costs less.
Everything you need to run an enterprise-scale phone system with phone service included. Pre-configured and ready to deploy.
* All Cisco phones and equipment are refurbished to like-new condition with full warranty.
* SIP Express Plus service includes lifetime warranty on all hardware. SIP Express Plus Terms & Conditions
At up to 79% off, the natural question is: what's the catch? There isn't one. This is the same enterprise Cisco hardware the Fortune 500 runs on — the Cisco ISR 4351 router, Cisco 8841 and 8851 IP phones — refurbished to like-new condition, fully tested, and built to run for a decade.
The price is low because the model is different. There's no monthly per-user rent funding a national ad budget and a stock price. You buy a real system once, at a price that reflects what the hardware actually costs — plus SIP Express Plus for the service, warranty, and support. Enterprise quality at small-business prices. That's the whole idea.
This isn't a DIY project. A Certified Network Specialist handles the technical end from start to finish.
Everything listed below comes standard. No add-on fees. No surprises.
No IT department required. No on-site technician visit.
Tell us about your business — how many phones, your office setup, what matters most. A Certified Network Specialist builds a custom proposal for your exact configuration.
A Certified Network Specialist configures 90% of your system before it leaves us. It arrives labeled, tested, and ready to plug in.
You connect the switch and phones; a Certified Network Specialist walks you through the finish remotely. Most 100-desk offices are fully live in under 2 hours.
The "expensive" on-premise system is actually the most affordable option over any reasonable timeframe.
Over five years, versus a comparable 100-seat cloud plan. Every system is customized — request a proposal for your exact numbers.
The same phones used by Fortune 500 companies.



Enterprise-grade build quality. Refurbished to like-new condition. Full manufacturer specs.
Build the perfect system for your office. Add any of these to your custom proposal.
Expansion panel for receptionists handling high call volume
Include in ProposalAdditional options: PoE Network Switch · Call Recording · Call Detail Records · Virtual Fax · Network Integration Services · Wireless Networking
Your 100-phone system includes 100 SIP lines through SIP Express Plus — HD audio phone service, with no separate carrier to manage. One package covers your phone service, lifetime hardware warranty, and technical support, instead of three separate bills.
100 SIP phone lines with HD audio calling, managed by VoIP PBX Express
The monthly is billed per user tier and is not all-in. Network access, E911 ($3.50/DID), DID, and regulatory fees are billed in addition and itemized on your quote. Rates adjust 8% each July. See the SIP Express Plus Terms for the full pricing breakdown.
4.9/5 across 100+ reviews on Trustpilot, Shopper Approved, Google, Facebook, and eBay
"I am delighted to purchase this product because it meets the business requirement."
"The team at VOIPPBX Express has been great to work with from the initial installation to ongoing support. The purchase was very economical, and they provided excellent value for the cost. They were knowledgeable…" Read full review →
"Perfect system for a low budget!"
No monthly per-user fees to rent your phones — that's where the savings come from.
We only sell what we'd recommend, so here's the honest version. A cloud system like RingCentral or 8x8 can make more sense if:
If that's you, a cloud plan is a reasonable choice. But if you have a real office with 75–100 desks and you plan to be there a while, owning an enterprise Cisco system — set up and managed for you — will cost far less over five years and put you in control of your own phones.
This bundle includes SIP Express Plus phone service (from $399/mo for 100 lines) and a lifetime warranty. The standalone system is hardware-only — you bring your own phone lines. This bundle gives you a lower upfront cost ($6,175 vs $19,500) because SIP service is included.
Yes. Over 5 years, this system costs about $26,240 total. A comparable 100-seat cloud plan runs roughly $180,000 at $30/user — a saving of around $153,760. Every system is customized, so request a proposal for your exact numbers.
SIP Express Plus is our managed phone line service. It provides 100 SIP trunks (phone lines) with HD audio calling from $399/month at the 75–100 user tier, plus itemized usage, E911, and regulatory fees. A Certified Network Specialist manages the service end-to-end, so you don't need a separate phone carrier.
As long as your SIP Express Plus service is active, your entire phone system — router, phones, and all components — is covered by our lifetime hardware warranty. No extra cost, no separate plan to purchase.
Yes. We can port your existing phone numbers to SIP Express Plus. The process typically takes 5–10 business days, and a Certified Network Specialist handles all the paperwork.
Yes. Cisco CME supports softphones on Android, iPhone, Mac, and PC. Remote workers connect just like they would with a cloud system.
Under 2 hours for most offices. Your system ships 90% pre-configured. You plug in the switch and phones, and a Certified Network Specialist guides you through the final setup remotely. SIP service is already active when the system arrives.
From 10 phones to 100. Every system includes the same Cisco quality and support.

Cisco 8841 color phones with full PBX

Complete Cisco PBX with SIP service bundled

Large office with reception phones & wireless

Enterprise scale with 200-user voicemail & SIP
An enterprise-scale 100-phone Cisco system — $19,500 $6,175, up to 79% off, plus SIP Express Plus from $399/mo. We set it up, run it, and manage it. You get a phone system that just works.
Or email: sales@voippbxexpress.com