What is BrainBox?

BrainBox by GrayMatter Networks is a flexible, software-based phone system that adapts to your Hotel’s needs.  We deliver simple and fair solutions to your overly complex telecom challenges: On premises, in the cloud, or both - it just works

What is BrainBox?

BrainBox by GrayMatter Networks is a flexible, software-based phone system that adapts to your Hotel’s needs.  We deliver simple and fair solutions to your overly complex telecom challenges: On premises, in the cloud, or both - it just works

Software-based PBX for Hotels

Runs on physical, virtual or dedicated servers

Full PMS integration & Unlimited Extensions

Developed in-house by GrayMatter Networks, backed by Sangoma

Secure with multi-factor authentication & VPNs for zero internet footprint

Supports SIP, T1/E1/J1 or analog trunking

ng911 compliant (Ray Baum’s Act & Kari’s Law)

24/7 expert support

Works with existing analog handsets via gateways

Why BrainBox?

Replacing Old PBX

  • Calls don’t reach the right team

  • Old PBX + new systems don’t talk

  • Multi-site = inconsistent experience

  • Vendor lock-in + licensing creep

  • Support finger-pointing

  • Compliance and emergency location risk

Environmental Fit

  • Deploy physical / virtual / cloud

  • Trunking options: SIP, T1/E1/J1, or POTS 

  • Keep existing analog handsets via gateways 

  • Built on open standards (FreePBX)

Hotel-Grade Features

  • Front desk & guest calling experience

  • Operations & reporting

  • Staff routing that matches hotel workflows

  • Safety, compliance & notifications

  • Security by design

BrainBox Features

We've developed multiple features to make your way of running a hotel easier

  • Full PMS interface and integration with the PBX
  • Voicemail to email for admin extensions
  • Hospitality voicemail for guest room phones (listen, delete, auto clear all VM on checkout)
  • Automated or personalized wake up calls, you pick
  • Guest name display on caller ID to admin extensions
  • Room status change codes for housekeeping
  • Call accounting module built-in
  • Unlimited extensions, queues, ring groups, IVRs, and voicemail boxes
  • Full, cradle to grave reporting options
  • Dispatchable emergency locations
  • Multi-channel alert notifications
  • Call recording

BrainBox Features

We've developed multiple features to make your way of running a hotel easier

  • Full PMS interface and integration with the PBX
  • Voicemail to email for admin extensions
  • Hospitality voicemail for guest room phones (listen, delete, auto clear all VM on checkout)
  • Automated or personalized wake up calls, you pick
  • Guest name display on caller ID to admin extensions
  • Room status change codes for housekeeping
  • Call accounting module built-in
  • Unlimited extensions, queues, ring groups, IVRs, and voicemail boxes
  • Full, cradle to grave reporting options
  • Dispatchable emergency locations
  • Multi-channel alert notifications
  • Call recording

Full PMS interface and integration with the PBX

Voicemail to email for admin extensions

Hospitality voicemail for guest room phones (listen, delete, auto clear all VM on checkout)

Automated or personalized wake up calls, you pick

Guest name display on caller ID to admin extensions

Room status change codes for housekeeping

Call accounting module built-in

Unlimited extensions, queues, ring groups, IVRs, and voicemail boxes

Full, cradle to grave reporting options

Dispatchable emergency locations

Multi-channel alert notifications

Call recording

PMS Integration

Don’t see the PMS you’re using? Just ask us, we can make it happen!

  • Oracle on prem
  • Oracle cloud
  • HMS Infor
  • Galaxy
  • Mews
  • RMS Cloud
  • FIAS IP
  • FIAS Serial
  • HTNG XML
  • Hilton OnQ & Hilton Pep coming soon!
  • Mitel Emulation
  • Hitachi Emulation

PMS Integration

Don’t see the PMS you’re using? Just ask us, we can make it happen!

  • Oracle on prem
  • Oracle cloud
  • HMS Infor
  • Galaxy
  • Mews
  • RMS Cloud
  • FIAS IP
  • FIAS Serial
  • HTNG XML
  • Hilton OnQ & Hilton Pep coming soon!
  • Mitel Emulation
  • Hitachi Emulation

Hotels we're certified with

Frequently Asked Questions (FAQ)

Can I keep my existing phones/lines?Yes. BrainBox is designed to fit into what you already have, not force a rip-and-replace. It supports SIP and legacy trunks (T1/E1/J1 and POTS), and it can keep existing analog room phones working through gateways.
Cloud vs on-prem?It depends on your property, IT model, and risk tolerance, and BrainBox supports all of it. You can run BrainBox on physical hardware, in a virtual environment, or in the cloud (including hybrid approaches). That means you can standardize the platform across properties even if each site has different infrastructure requirements. You can read our full article HERE if you're interested to know more and see what's best for you.
What about emergency calling compliance?BrainBox is NG911 compliant and supports modern emergency calling requirements, including dispatchable location capabilities. This helps hotels meet regulatory expectations and ensure emergency calls can be routed with accurate location details.
PMS integrations?Yes. BrainBox includes full PMS integration and supports multi-site environments. It also supports a range of common hospitality PMS integration methods and platforms (including Oracle on-prem/cloud, OnQ, Pep, Mews, RMS Cloud, Infor HMS, and more).
Licensing model (no per-extension)No. BrainBox has no per-extension licensing. This makes it easier to scale across departments, staff changes, or multi-property deployments without surprise licensing costs as you grow.
Security approach (2FA/VPN)BrainBox is built with secure access in mind and supports protections like two-factor authentication (2FA) and VPN access, along with a “zero internet footprint” approach (i.e., designed to minimize exposure).

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Copyright ©GrayMatter Networks 2026

Copyright ©GrayMatter Networks 2026

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