J & L Telcom

Grennan Communications has proudly served the telecommunications and security needs of Southern Missouri and Northern Arkansas for over 40 years. As a locally owned and operated company, we are committed to providing high-quality, high-tech communications and security solutions tailored to each customer's unique needs.

Telephone Systems

Our comprehensive telephone systems solutions include:

• Aeonix - A unified communications and collaboration platform that seamlessly integrates voice, video, and collaboration tools in a single, intuitive interface.
• Legacy Systems - Support for existing Toshiba phone systems, including IP Edge, CIX, Strata Messaging, and more.
• Customized Training and Support - Tailored training and ongoing support to ensure you get the most out of your phone system.

Security Solutions

We offer a comprehensive range of security solutions to protect your business from intrusion, fire, and other threats:

• Custom-designed Burglar and Fire Alarm Systems
• Video Surveillance and CCTV Systems
• Access Control Systems
• Security System Monitoring and Management

Our Commitment

At Grennan Communications, we understand that technology can be complex and overwhelming. Our team of knowledgeable and experienced professionals will take the time to understand your unique needs and design a customized plan that is right for you. We prioritize user-friendliness and provide ongoing support and training to ensure you can easily navigate and maximize the benefits of our solutions.

Our Philosophy

Our mission is to:

• Provide high-quality, reliable communication and security solutions
• Offer personalized, responsive customer service
• Simplify technology and make it accessible to all
• Build lasting relationships with our clients
• Support the growth and success of our community