Business VoIP & Unified Communications

Retire your legacy PBX and consolidate voice, video, messaging, and contact center onto a single cloud platform. NexCore Systems delivers enterprise UCaaS solutions that reduce telecom costs by up to 60% while dramatically improving employee collaboration.

Why California Businesses Are Abandoning Legacy PBX

Traditional on-premises PBX systems are expensive to maintain, difficult to scale, and incapable of supporting today's hybrid workforce. The average legacy PBX requires $15,000–$50,000 in maintenance and upgrades every 3–5 years, and adds zero value to remote workers who have become a permanent fixture of the California business landscape.

Modern UCaaS platforms deliver all PBX functionality plus advanced collaboration tools — from a cloud platform with 99.999% uptime SLA, accessible from any device, anywhere in the world. NexCore Systems designs, deploys, and manages UCaaS solutions for organizations from 10 to 5,000+ users.

Our VoIP & UCaaS Services

Cloud PBX & Business Phone Systems

We implement and manage leading cloud PBX platforms including RingCentral MVP, Zoom Phone, 8x8 X Series, and Microsoft Teams Phone System. Every implementation includes number porting from your existing carrier, custom auto-attendant configuration, hunt groups, call queues, voicemail-to-email, and integration with your CRM platform.

Microsoft Teams Direct Routing

For organizations already using Microsoft 365, adding Teams Phone with Direct Routing converts your existing Teams environment into a full enterprise PBX. NexCore handles Direct Routing infrastructure, SBC configuration, and carrier connectivity to deliver PSTN calling through Teams at a lower cost than competing solutions.

Contact Center as a Service (CCaaS)

Transform your customer experience with cloud-based contact center solutions featuring intelligent routing, real-time supervisor dashboards, call recording, quality management, workforce management, and CRM screen pop integration. We implement Genesys Cloud, NICE CXone, and RingCentral Contact Center for organizations requiring sophisticated customer interaction management.

SIP Trunking

If you have an existing on-premises PBX that still has useful life remaining, SIP trunking replaces costly ISDN PRI circuits with cost-effective IP-based voice services. NexCore provisions SIP trunks from multiple carrier partners, implements redundant routing, and configures failover to cellular to ensure business continuity.

UCaaS Benefits at a Glance

  • Eliminate on-premises PBX hardware maintenance costs
  • Reduce per-line telecom costs by 40–60% compared to POTS and ISDN
  • Instantly add users or locations — no hardware required
  • Enable remote and hybrid workers with full phone functionality on any device
  • Consolidate voice, video, messaging, and fax on a single platform
  • Gain real-time call analytics and reporting dashboards
  • 99.999% uptime SLA — more reliable than on-premises PBX
  • Automatic feature updates and security patches from the cloud provider

VoIP Implementation Process

  1. Telecom Audit: Review existing carrier contracts, monthly telecom spend, call volumes, and current PBX capabilities to identify savings opportunities.
  2. Platform Selection: Recommend the optimal UCaaS platform based on your Microsoft ecosystem, contact center needs, remote work requirements, and budget.
  3. Network Readiness Assessment: Assess your internet bandwidth, QoS configuration, and network infrastructure to ensure voice quality meets enterprise standards before migration.
  4. Design & Configuration: Configure auto-attendants, IVR menus, call flows, hunt groups, and user profiles to replicate and improve your existing telephony setup.
  5. Number Porting: Port all existing phone numbers to the new platform with zero customer-visible disruption. We manage the carrier coordination process end-to-end.
  6. Training & Go-Live: Train all users on the new system and provide on-site support during go-live week to resolve any issues immediately.
How is call quality guaranteed over the internet?
VoIP call quality depends on network configuration, not just bandwidth. NexCore configures Quality of Service (QoS) on your network to prioritize voice traffic, implements SD-WAN for intelligent traffic routing, and establishes redundant internet connections. We conduct a pre-deployment voice quality assessment using MOS (Mean Opinion Score) testing to validate your network before migration.
Can we keep our existing phone numbers?
Yes. All your existing phone numbers can be ported to the new UCaaS platform. The porting process typically takes 2–4 weeks depending on your current carrier. NexCore manages the entire porting process and coordinates with your current carrier on your behalf.
What happens to our phones during an internet outage?
We implement multiple layers of redundancy: LTE failover connections for voice continuity, automatic call forwarding to mobile devices when internet is unavailable, and geo-redundant cloud platform infrastructure with 99.999% uptime. Your business communications remain operational even during ISP outages.

Cut Your Telecom Bill in Half

Get a free telecom audit and VoIP savings analysis from NexCore Systems. Most clients save 40–60% on their monthly telecom costs after switching to cloud VoIP.

Get Free Telecom Audit