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UCaaS (Hosted PBX)
Enterprise Cloud Phone System with 100+ Features — Zero Hardware
UCaaS (Unified Communications as a Service) — also known as Hosted PBX — consolidates your phone system, video conferencing, team messaging, and contact center into a single cloud platform. California Telecom delivers enterprise-grade UCaaS on the NetSapiens platform with 99.999% uptime, 100+ built-in features, and 100% U.S.-based support. No on-premises hardware to purchase or maintain.
Key Benefits
Endpoints, Phones & Paging
16 models • Yealink, Snom & AlgoDesk phones, DECT cordless, headsets, conference speakerphones, and IP paging — all deployed, provisioned, and supported by California Telecom.
See It in Action
Representative views of the UCaaS admin & agent experience — IVR builder, call history, phone key programming, and team messaging / SMS.
What Is UCaaS / Hosted PBX?
Unified Communications as a Service replaces your on-premises PBX, conferencing system, and messaging tools with a single cloud-delivered platform. Instead of owning and maintaining server hardware in a closet, your phone system runs on carrier-grade infrastructure in geographically redundant data centers. Employees make and receive calls from their desk phone, laptop, or smartphone using one business number. Video meetings, team chat, file sharing, and fax all live in the same interface — no hardware to maintain, no software to update.
100+ Enterprise-Grade Features
Every seat includes auto-attendant (with chained and scheduled menus), multi-line hunt groups, call park, call transfer (blind, attended, and intercom), find me/follow me, visual voicemail with email forwarding, conference bridges with leader PIN and recording, presence indicators, team chat, call recording, shared call appearance, busy lamp field, selective call acceptance/rejection, sequential ring, simultaneous ring, do-not-disturb, three-way calling, extension dialing, intercom, paging, hotdesking, and much more. Advanced features include AI-powered voicemail transcription, CRM screen pop, and receptionist console.
Built-In Call Center & Contact Center
Our platform includes full call center capabilities powered by the NetSapiens engine: automatic call distribution (ACD), skills-based routing, round robin, ring all, and linear cascade distribution methods. Supervisors get real-time dashboards showing callers waiting, average wait time, handling time, abandon rate, and call volume. Monitor agents with listen-in, whisper, and barge-in capabilities. Cradle-to-grave reporting provides complete visibility into every customer interaction. SMS queuing allows agents to handle text conversations alongside voice calls.
Work from Anywhere
Every user gets a softphone application for desktop (Windows and Mac) and mobile (iOS and Android). Make and receive calls using your business number from any device, anywhere. Transfer calls between your desk phone and mobile mid-conversation. One-number calling means customers always reach your team through the business number — they never see a personal cell number.
Microsoft Teams Integration
Already invested in Microsoft Teams? Our TeamsLink integration brings enterprise calling capabilities directly into the Teams interface. Make and receive external calls, transfer calls, manage hunt groups, and access advanced PBX features — all without leaving Teams. No need to manage two separate applications.
HD Voice Quality & Network Optimization
Our platform uses wideband audio codecs that deliver crystal-clear voice quality — audibly superior to traditional phone calls. Combined with QoS optimization that prioritizes voice traffic on your network, you get consistently excellent call quality even during peak bandwidth usage.
Comprehensive Monitoring & Reporting
The management portal provides real-time call center statistics, domain-wide graphs and analytics, peak active call tracking by hour, day, or minute, call volume reporting, and CDR (call detail record) access. Office managers can configure auto-attendants, manage call queues, set timeframes for business hours and holidays, and monitor the entire system from a web-based portal.
White-Glove Deployment Process
Our deployment follows a proven five-phase process: Discovery (collect users, extensions, DIDs, and reverse-engineer existing call flows), System Build (recreate and test the system on our portal before presenting to the client), Customer Deployment & Testing (train office managers, deploy phones, record greetings, and fine-tune), Go Live (port numbers, onsite training, and cutover), and Close Out (follow-up, advanced features training, and project sign-off). Most deployments complete in 2–4 weeks with zero downtime.
Security & Administration
The platform supports Single Sign-On (Apple SSO, etc.), Multi-Factor Authentication (MFA), and role-based access controls. Configurable feature codes, group announcements, department support, authorization group codes, and a printable group directory give administrators full control. Call intercept, malicious call trace, and calling plan management (incoming and outgoing) provide additional security layers.
Frequently Asked Questions
What is the difference between UCaaS and Hosted PBX?
They're essentially the same thing. Hosted PBX refers to a cloud-hosted business phone system, while UCaaS (Unified Communications as a Service) adds video, messaging, and collaboration features to that same platform. At California Telecom, every Hosted PBX seat includes full UCaaS capabilities — there's no 'basic' tier without unified communications.
Can I keep my existing phone numbers?
Absolutely. We handle number porting from any carrier. Your existing phone numbers transfer to our platform seamlessly, typically completing within 5–10 business days. There is no interruption to service during the porting process.
What phones are compatible?
We support Polycom, Yealink, and Cisco desk phones with plug-and-play auto-provisioning. Softphone clients are available for Windows, Mac, iOS, and Android. You can also use existing analog phones with an ATA adapter.
What internet bandwidth do I need?
Each concurrent call requires approximately 100 Kbps of dedicated bandwidth. For a 50-person office with 20 concurrent calls, you'd need about 2 Mbps of dedicated QoS-prioritized bandwidth. We assess your network readiness before deployment and recommend upgrades if needed.
How much does UCaaS save compared to a traditional phone system?
Most businesses save 40–60% in total cost of ownership compared to on-premises PBX systems when you factor in hardware purchase, maintenance contracts, IT labor, and circuit costs. UCaaS converts capital expense into predictable monthly operating expense.
What happens if the internet goes down?
Calls automatically forward to designated mobile numbers or voicemail. Voicemails are delivered to your email as audio attachments. Once internet is restored, the system returns to normal automatically. We recommend redundant internet connections for mission-critical environments.
What call center features are included?
Full ACD with skills-based routing, round robin, ring all, and linear cascade distribution. Real-time supervisor dashboards, listen-in/whisper/barge-in monitoring, cradle-to-grave reporting, queue statistics, agent statistics, wrap-up time settings, and SMS queuing are all included. No additional licensing required for basic call center functionality.
How long does deployment take?
Most deployments complete in 2–4 weeks. Our five-phase process (Discovery, System Build, Testing, Go Live, Close Out) ensures a smooth transition with zero downtime. We handle number porting, user provisioning, phone configuration, call flow design, and personalized training.
Your Next Three Steps
Reach Out
Whether it's slow infrastructure or critical downtime, we're here to listen.
We Craft a Solution
After understanding your specific challenges, we provide a customized quote, often the same day.
Get Back to Business
With our solution in place, you can focus on what really matters: growing your business.
Trusted by Businesses Across California
"We really appreciate the professionalism and clear communication California Telecom brings as our managed service provider across network infrastructure, SecOps, and the rest of the backend."
Joe Fancher
Jack Nadel Inc.
"California Telecom customer service is a shining example of what every service provider should offer. Our IT Production Services division is fully dependent on the internet. We've been a California Telecom customer for at least 7 years, and I'm amazed with the support team and level of service."
Oscar Navarro
Sony Pictures
"Long-time customer of California Telecom here, and I can say from experience that these guys are the definition of responsive. I can call or email and within minutes, have a Tier 2 engineer on the line troubleshooting the issue."
Danny Rodriguez
Lanair Group
"California Telecom has demonstrated commitment over the years, providing excellent 24/7 support and services with their T1's, VoIP service, and co-location service. They are as much a part of our business as our customers are."
Hanns Schweis
Thermal Dynamics
"We use California Telecom hosted voice and internet. Very happy since we migrated from traditional carriers like Time Warner and AT&T. Always pass on the referrals if anyone is asking for an ISP."
Vitaliy Sklyar
Netpower
"Service has always been prompt and professional, and I am yet to have any downtime. Much better than Charter and AT&T, who I suffered with for years prior."
Atilla Banoczy
Lanair Group
"We really appreciate the professionalism and clear communication California Telecom brings as our managed service provider across network infrastructure, SecOps, and the rest of the backend."
Joe Fancher
Jack Nadel Inc.
"California Telecom customer service is a shining example of what every service provider should offer. Our IT Production Services division is fully dependent on the internet. We've been a California Telecom customer for at least 7 years, and I'm amazed with the support team and level of service."
Oscar Navarro
Sony Pictures
"Long-time customer of California Telecom here, and I can say from experience that these guys are the definition of responsive. I can call or email and within minutes, have a Tier 2 engineer on the line troubleshooting the issue."
Danny Rodriguez
Lanair Group
"California Telecom has demonstrated commitment over the years, providing excellent 24/7 support and services with their T1's, VoIP service, and co-location service. They are as much a part of our business as our customers are."
Hanns Schweis
Thermal Dynamics
"We use California Telecom hosted voice and internet. Very happy since we migrated from traditional carriers like Time Warner and AT&T. Always pass on the referrals if anyone is asking for an ISP."
Vitaliy Sklyar
Netpower
"Service has always been prompt and professional, and I am yet to have any downtime. Much better than Charter and AT&T, who I suffered with for years prior."
Atilla Banoczy
Lanair Group
UCaaS (Hosted PBX) serving businesses across Southern California: Los Angeles · Orange County · Inland Empire · San Bernardino County · Riverside County · San Diego County · Ventura County · Nationwide