3CX Phone System

The Phone System Problem

Most Houston businesses have one of two phone setups: a legacy on-premises PBX from a vendor that no longer makes desk phones (Avaya, NEC, Mitel of a certain vintage), or a hosted service with a per-seat monthly bill that climbs every year. The on-prem systems are reliable but increasingly hard to support and impossible to extend with modern features. The hosted services are easier to start with but expensive at scale, opaque about call routing, and locked to one vendor’s ecosystem.

The middle path that quietly works very well: a software PBX you control, running on infrastructure you choose, with SIP trunks from carriers you can swap as pricing changes, and license costs that don’t scale linearly with every new hire. That’s 3CX.

Tomotechi has been deploying 3CX for Houston businesses for years — small offices, multi-location operations, distributed remote teams, and a few that genuinely needed the kind of call routing logic that hosted providers either don’t offer or charge prohibitively for.

Why 3CX

3CX is a complete software-based PBX with VoIP calling, video conferencing, web meetings, mobile apps, and a feature set that competes with much more expensive hosted offerings. Licensed by simultaneous calls (not per user), which makes the math work very differently from RingCentral, Vonage, and similar. Full product details are at 3cx.com.

• Complete PBX — extensions, queues, IVR, ring groups, time-of-day routing, call recording, voicemail-to-email
• Mobile and desktop softphones — full PBX features on Mac, Windows, iOS, and Android; same extension follows the user
• Video conferencing and web meetings — built-in, no extra Zoom or Teams license required for internal meetings
• License by simultaneous calls — you pay for capacity, not for every employee who occasionally answers a phone
• Self-hosted or hosted — run on your own server, in a private cloud, or on infrastructure we host for you
• SIP trunk flexibility — bring your own carrier or use 3CX’s trunks; swap when pricing changes without changing your phone system
• CRM integration — HubSpot, Salesforce, Microsoft Dynamics, Zoho, and others; click-to-call and screen-pop on inbound
• Microsoft Teams and WebRTC integration — route calls into Teams users where it makes sense; embed calls into web pages and apps

That’s the platform. The next question is what it looks like to actually deploy 3CX for your business — sizing, hosting, SIP trunks, number porting, call flow design, and end-user enablement.