VoIP & Unified Communications for Illinois Businesses
Integrated voice, video, and messaging over IP — cutting telephony costs while keeping your entire organization connected on any device.
VoIP & Unified Communications for Illinois Businesses
Traditional phone systems are expensive, inflexible, and hard to manage. Nexus designs and manages cloud-hosted and on-premises VoIP solutions for Illinois organizations, replacing legacy PBX with modern unified communications — designed to lower telephony costs while adding mobile integration, video calling, and presence management.
Cloud-Hosted VoIP
Fully managed cloud PBX with auto-attendant, voicemail-to-email, call recording, and hunt groups.
Unified Messaging
Voice, SMS, chat, and video in one application — accessible from desk phone, softphone, or mobile.
Microsoft Teams Voice
Direct Routing integration enabling Microsoft Teams as your organization's primary phone system.
SIP Trunking
Replace expensive analog lines with SIP trunks — designed to lower per-line costs meaningfully.
Call Center Features
Queue management, supervisor dashboards, call recording, and analytics for contact center environments.
On-Premises PBX
Enterprise on-premises systems for organizations requiring local call processing and HIPAA-ready voice.
Why Illinois Organizations Switch to VoIP
- Reduce telephony costs versus traditional phone systems
- Mobile integration — make and receive business calls on personal devices
- Voicemail-to-email, call recording, and auto-attendant included
- Microsoft Teams Direct Routing — Teams as your phone system
- Scale users up or down with no hardware changes
- HIPAA-ready options for healthcare environments
Key Benefits
Lower Telephony Costs
Replace expensive analog lines and legacy PBX maintenance contracts.
True Unified Communications
Voice, video, messaging, and presence in one platform on any device.
Teams Voice Integration
Use Microsoft Teams as your complete phone system with Direct Routing.

Related Case Studies
Legacy PBX Migration — Distributed Team
Illinois Professional Services Firm
Migrated a distributed team from aging on-premises PBX to cloud VoIP under one managed agreement — remote workers use the full phone system from home.
Healthcare HIPAA-Ready VoIP
Illinois Medical Practice
Deployed HIPAA-ready cloud PBX with encrypted call recording, replacing legacy analog lines under one managed agreement. Staff communication improved through unified messaging.
UniFi360 Stack Builder
FreeInteractive 9-step tool — design a full UniFi stack with WiFi, cameras, access control, phones & signage. Get ROI estimates instantly, no sales call required.
Ready to bring VoIP & Unified Communications for Illinois Businesses to your facility?
Our engineers respond within one business day with a custom scope — no obligation.
Call 847-443-9900 · 1171 Tower Road, Schaumburg, IL 60173 · Request consult
Frequently Asked Questions
Let's Build Something That Works.
Tell us about your facility and we'll design a technology solution — and a managed service — that fits your environment, your budget, and your timeline.
- Free site assessment
- Fixed-price proposals
- No commitment required
99.99%
Uptime SLA
15 min
Critical Response
20+
Years Experience
1
Vendor for Everything
Request a VoIP & Unified Communications for Illinois Businesses Consultation
Integrated voice, video, and messaging over IP — cutting telephony costs while keeping your entire organization connected on any device.
