Per Seat Model
You pay for full capacity
Every employee = one paid line — even if they’re not on a call
You pay for everything — used or not
£13,284 / month
200 employees = 200 lines billed
You’re paying for unused capacity
VoxSun vs Cisco CUCM.
Stop paying for 5× more phone capacity than you use.
Most businesses use 20% of their lines at any given time. Cisco CUCM charges you for 100%. VoxSun charges you for what you actually use.
£13,284/month → £3,007.33/month
99.9% Uptime SLA
SOC 2 Compliant
10,000+ Businesses
Monthly cost — 200-employee team
Cisco CUCM
£13,284
/month
vs
With VoxSun
£3,007.33
/month
−77%You save
£123,320.04
per year, every year
VoxSun vs Cisco CUCM
THE TRUTH: The VoIP pricing model is broken
Most businesses never have their entire team on calls at the same time. But traditional providers charge you as if they do
Per Line + BOOST Model
You pay for real usage
Lines are shared across users based on actual call activity
You only pay for what you actually use
£3,007.33 / month
200 employees ≈ 40 lines billed
VoxSun increases your capacity momentarily for FREE
Extra capacity activates instantly — automatically — and at no cost. Then disappears when demand drops
Same team. Same usage. Up to 50% lower cost.
Every other provider charges for unused capacity. VoxSun Does Not.
For a 200-person team
Per Seat (Cisco CUCM)
£13,284 / month
200 users × £66.42
Recommended
Per Line (VoxSun)
£3,007.33 / month
67 lines × £29.99 + 200 × £4.99
Save £10,276.67 / month
£123,320.04 / year
Most teams only use ~20% of lines at the same time. Per-seat pricing charges you for 100% anyway.
Switch in 24 hours. Keep your numbers.
Zero downtime!
How VoxSun BOOST Actually Works
Your capacity adapts in real time — automatically, and for free
Your team doesn’t stop — your system scales with them.Step 1 — Base
2 calls active
Only 2 simultaneous calls based on your base plan
Step 2 — Detection
3 calls active
System detects increased demand in real time
+1 Line
Step 3 — Boost
4 calls active
Extra lines activate automatically — no extra cost
No waiting. No missed calls. No extra charges.
Built for real business usage — including peaks
Your activity isn't constant.
Sometimes, more people are on calls at the same time.
VoxSun adapts instantly — at no extra cost.
When call volume increases:
- The system automatically activates additional capacity
- No delay
- No manual setup
- No extra charges
When activity goes back to normal:
- The extra capacity disappears
Business activity is not constant. Pricing shouldn’t be either
You don't pay for peak usage.
You only pay for real usage.
Traffic spike? No problem. VoxSun temporarily expands your capacity — automatically and for free — then scales back when demand drops.
Feature By Feature
VoxSun VS Cisco CUCM Side by Side
| Feature | VoxSun | Cisco CUCM |
|---|---|---|
| Flexible pricing model (not per seat) | ||
| Lower cost for teams (200 users) | ||
| No long-term contract | ||
| AI features included | ||
| Advanced AI sales tools | ||
| BOOST auto scaling technology | ||
| Free number porting | ||
| Full STIR/SHAKEN protection | ||
| Own carrier-grade network | ||
| Unlimited SMS included | ||
| Global data hosting | ||
| CRM integrations |
VoxSun's AI Sales Module
Turn every lead into revenue with automated calls, texts, emails, and AI-driven workflows — all in one system.
What is BoostMydeal
BoostMyDeal is VoxSun's AI sales and revenue automation module — built directly into the phone system, not sold as a third-party add-on. it converts voxsun from a phone system into a complete ai-powered sales platform.
VoxSun Pro Plan Includes
This is not a VoIP system. This is a programmable communication infrastructure with built-in AI revenue automation
The BoostMydeal Ai Revenue Engine
AI Voice Agents
Human-like AI answers, qualifies, and routes every call around the clock.
Instant lead follow-up
Every new lead is contacted in seconds — not hours — while intent is hot.
Multi-channel outreach
Calls, texts, and emails fire in one coordinated, automated sequence.
Appointment booking automation
AI books qualified prospects straight into your reps’ calendars.
Missed call recovery
Every missed call is automatically called and texted back — no lead lost.
AI call scripts
Dynamic scripts adapt to each conversation in real time.
Lead qualification engine
AI scores and prioritizes leads so reps work the hottest first.
Smart retry logic
No-answers are retried automatically at the best times to connect.
Automated call summaries
Every call transcribed, summarized, and logged — no manual notes.
CRM sync
Contacts, outcomes, and notes sync to your CRM automatically.
Real-time analytics
Track pipeline, connect rates, and revenue in a live dashboard.
Workflow automation
Trigger follow-ups and hand-offs from any call outcome.
Voice AI & Intelligent IVR
Voice Recognition IVR
Callers speak naturally instead of pressing keypad menus.
AI understands caller intent
Routes each call accurately based on what the caller actually says.
Automated call handling
Greets, qualifies, and routes inbound calls without an agent.
Hybrid IVR
Blends AI and live agents, with human fallback for complex calls.
Automation & CRM
Workflow automation engine
Event-based triggers across calls, SMS, email, and CRM updates.
Full lead-to-close automation
Automates every step from first contact to signed deal.
Real-time CRM sync
Call outcomes, notes, and next actions sync to your CRM instantly.
Unified communication history
Calls, SMS, email, and notes for every contact in one timeline.
Revenue Tracking
Conversion tracking
See which calls and sequences actually convert into deals.
Pipeline visibility
Track every opportunity in real time, through to signed deal.
Call outcome analytics
Break down outcomes, objections, and next actions automatically.
Revenue dashboard
Every call, SMS, and interaction rolled into one revenue view.
This Replaces Your First Layer Of Sales
AI answers calls
Never Miss A Lead. The AI Picks Up On The First Ring, 24/7.
AI qualifies leads
Asks The Right Questions To Identify High-Intent Prospects.
AI books meetings
Syncs With Your Calendar To Schedule Qualified Leads Directly
AI follows up automatically
Sends Personalized Emails And Texts To Keep Deals Moving.
Stop paying per seat for AI
Competitors charge £20–£60/user/month for this.
PricingWe include it in Pro
You’re overpaying by £35,000 per year
Calculate Your Savings
Contract term
No commitment
£29.99/line
2-year contract
£27.99/line
Save 7%
3-year contract
£24.99/line
Save 17%
5-year contract
£19.99/line
Save 33%
Licence tier
Starter£4.99/user
Desk-based teams, physical phones only
- Desk phone + calling
- Voicemail + HD voice
- Basic IVR + routing
- Internal extensions
- Verified calling
- BOOST included
No mobile or desktop apps
Growth£9.99/user
Most businesses operate on this plan
- Everything in Starter
- Mobile + desktop apps
- Advanced call routing
- Team collaboration
- Analytics dashboard
- Business SMS (1,000/mo)
Pro£14.99/user
AI-powered voice for sales-driven teams
- Everything in Growth
- AI voice agent (24/7)
- Auto follow-ups
- CRM integrations
- Advanced analytics
- Priority support
Traditional model
Per-seat pricing
1 paid seat per employee — used or not
£1,500/mo
50 employees × £30.00/seat
Paying for unused capacity
VoxSun
VoxSun
Per line + licence model
1 line per 3 employees — pay for real usage
£759/mo
17 lines × £29.99 + 50 licences
BOOST expands capacity automatically for free
vs. competitor per-seat
£741/mo
£8,888 per year
Lock in a contract to save more
—
Choose a contract term above
That’s 49% less than the per-seat model.
How VoxSun BOOST actually works
Your capacity adapts in real time — automatically, and for free
Your team doesn’t stop — your system scales with them.
Step 1 — Base
2 calls active
Only 2 simultaneous calls based on your base plan
Step 2 — Detection
3 calls active
System detects increased demand in real time
+1 Line
Step 3 — Boost
4 calls active
Extra lines activate automatically — no extra cost
No waiting. No missed calls. No extra charges.
Where VoxSun Wins — & Why it Matters
Not all communication platforms are built the same. here's what actually impacts your business
VoxSun Advantages
- 77% saving (£123,320/year) for 200 users vs estimated Cisco CUCM TCO
- Zero server investment — Cisco requires £80,000–£250,000 infrastructure
- No SMAT support contract — saves £12,000–£45,000/year
- No Cisco-certified engineer required — self-service admin portal
- BOOST free auto-scaling — Cisco capacity expansion requires hardware
- BoostMyDeal AI on Pro — no native CUCM equivalent
- Live in under 24 hours — Cisco deployments take weeks to months
- Cloud disaster recovery included — Cisco HA requires a redundant hardware cluster
Why Businesses Leave Cisco CUCM
- Cisco CUCM is the gold standard for enterprise telephony — unmatched call processing reliability
- Supports up to 80,000 users on a single cluster — unmatched scalability for large enterprises
- Deep integration with Cisco networking infrastructure (switches, routers, QoS)
- Best choice for organisations with existing Cisco networking and certified staff on-site
- Cisco has decades of telecom security certifications and compliance history
You don't need fewer calls. You don't need fewer employees. You just need a pricing model that makes sense.
Cost Alert
Most teams don't realise this
£123,320.04 +
Annual saving range
Cisco CUCM
£13,284 /mo
VoxSun
All-Inclusive
£3,007.33 /mo
Frequently Asked Questions
Everything you need to know before switching to VoxSun
VoxSun bills per concurrent line, not per seat. You only pay for actual call capacity, and BOOST adds lines automatically and at no charge during peaks. The result is typically 50–70% lower than Cisco for the same usage — fully transparent, no surprise add-ons.
Turn your communication system into a revenue engine.
AI voice, automation, and infrastructure — built to reduce cost and increase conversions from day one.