Northern CaliforniaPhone Systems & Security Solutions
Your integrated unified communications partner, specializing in voice and security solutions for businesses, organizations, and K12 Schools across Northern California.
Valcom
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Ring Central
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Mitel / Shortel
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Halo Smart Sensors
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Verkada
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Motorola Solutions
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Zoom Phone
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Omnilert AI Gun Detection
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E-Metrotel UCX
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NEC Legacy Support
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Avigilon
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Elevate
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Valcom ◆ Ring Central ◆ Mitel / Shortel ◆ Halo Smart Sensors ◆ Verkada ◆ Motorola Solutions ◆ Zoom Phone ◆ Omnilert AI Gun Detection ◆ E-Metrotel UCX ◆ NEC Legacy Support ◆ Avigilon ◆ Elevate ◆
Gaynor TelesystemsYour Trusted Business Technology Integrators
Family owned since 1974, Gaynor Telesystems is a trusted technology partner serving businesses from multiple offices throughout Northern California. Now in our second generation of leadership, with two key team members, Wanda and Ron joining as shareholders in 2025, we deliver integrated business phone systems, VoIP, unified communications, CCTV, access control, and security solutions. We don't just sell technology. We design systems tailored to your business and your budget.
1974
Family owned and operated since
2nd
Generation leadership team of innovators
100%
Factory certified engineers with expertise
10+
Year lifespan on technology systems
What We doIntegrated Solutions for Phone & Security
Whether you need a modern cloud phone system, a reliable on-premise solution, or a fully integrated security platform, we have the expertise and partnerships to get it right. Explore our solutions below to find the right fit for your organization.
Cloud
Cloud / VoIP Phone Systems
Flexible, scalable platforms from Elevate, Zoom Phone, and RingCentral. Voice, video, messaging, and AI-powered tools in one unified solution.
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On-Premise
On-Premise Phone Systems
Locally hosted business phone systems from Mitel and E-MetroTel, plus continued support for NEC legacy systems. Full control, installed and maintained by our team.
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Cloud
Cloud Security Solutions
Cloud video security and access control from Avigilon Alta, Verkada, and Omnilert gun detection. AI cameras and smart sensors managed from anywhere.
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On-Premise
On-Premise Security Solutions
Integrated camera systems, access control, AI gun detection, smart sensors, and emergency lockdown systems from Avigilon, Omnilert, Valcom, and more.
Learn More →Education
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Government
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Single-Site Businesses
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Multi-Site Businesses
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Education ◆ Government ◆ Single-Site Businesses ◆ Multi-Site Businesses ◆
Education SectorIntegrated Technology Solutions for Education
We implement technology solutions tailored for K–12 schools and college campuses, delivering integrated systems that enhance communication, safety, and operations. Every system speaks to the others — alarms trigger lockdowns, sensors trigger notifications, paging reaches every endpoint.
Emergency Notification
Multi-channel mass alert notifications that reach phones, speakers, displays, and mobile devices in seconds.
Emergency Lockdown
One-touch panic buttons activate lockdown that closes doors, locks access, and alerts staff and first responders instantly.
Clock & Bell Systems
Synchronized clocks, scheduled bells, and zoned paging across every building, classroom, and corridor.
Security Cameras
AI-powered surveillance with smart detection, license plate recognition, and centralized cloud video.
Access Control
Badge readers, mobile credentials, and door management — all administered from a single cloud dashboard.
Phone Systems
Cloud or on-premise voice with AI transcription, video meetings, and unified messaging for every campus role.
Audio / Visual
Classroom displays, auditorium sound, and conference rooms designed for clear instruction and live events.
Sensors & Alarms
Vape detection, intrusion sensors, and air-quality monitoring that auto-trigger cameras, alerts, and lockdowns.
More than a VendorWhy Businesses Trust Gaynor Telesystems
50+ Years of Local Expertise
Family owned since 1974 with deep roots in Northern California. We know this market, and we're not going anywhere.
One Partner for Phone & Security
Voice, video, data, and security from a single trusted source. Fewer vendors means fewer headaches and faster support resolution.
We Work With Your Budget
We listen first, then design a solution that fits. Flexible payment options and systems built to last 10+ years keep your investment working for you.
24/7/365 Support
Factory-certified engineers, dedicated customer service staff, a free help desk, and service level agreements customized to your operations.
Proven Results
Over 90% of our annual revenue comes from repeat business and referrals. Our customers stay with us because we deliver.
AI-Powered Technology
Our systems feature built-in AI that summarizes calls, detects threats, analyzes video, and automates tasks so your team can focus on what matters.
Authorized & CertifiedWe Stand Behind Our Technology Partners
Every phone and security solution we recommend is one we install, maintain, and support ourselves. When you buy through Gaynor Telesystems, you get factory-certified expertise on every platform we carry.
Client SuccessCase Studies for Northern California
