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Business Phone Systems - Houston, TX

Still paying too much for a phone system that does not deliver?

Telmart has installed and supported business phone systems across Houston for over 30 years. From modern VoIP cloud phones to traditional PBX - we find the right system for your business and handle everything from quote to go-live.

Get a Free Phone System Quote

No pressure. We follow up within 1 business day.

Certified Partners
RingCentral Certified Delivery Partner AT&T Authorized Comcast Business NEC Systems

Phone Systems We Offer

The right phone system for your Houston business.

We do not sell you what is most expensive - we sell you what fits.

VoIP Cloud Phone

Calls, texts, and video in one app. Works from anywhere. Scales instantly as you grow. Powered by RingCentral.

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Traditional PBX

On-premise systems for businesses that prefer local control. New and used NEC systems available.

Hybrid Systems

Keep your existing hardware and layer on cloud features. We handle complex migrations without downtime.

What Is Included

We handle everything - start to finish.

Most companies just drop the hardware and leave. Telmart stays until everything works - phones, voicemail, auto-attendant, call routing, and your team trained to use it.

  • Free on-site assessment of your current setup
  • System recommendation based on your team size and budget
  • Professional installation and wiring
  • Voicemail, auto-attendant, and call routing setup
  • Staff training on day of go-live
  • Ongoing support and maintenance
  • Number porting from your current provider
  • Small businesses replacing outdated landlines
  • Medical and dental offices
  • Law firms and professional services
  • Growing companies adding remote workers
  • Businesses relocating to a new Houston office
  • Companies switching from AT&T or Comcast landlines
  • Multi-location businesses needing unified systems

Houston phone system experts - since 1995.

We are a RingCentral Certified Delivery Partner and authorized by AT&T and Comcast Business. When something goes wrong, you call us directly - no call centers, no ticket queues.

30+
Years Installing Phone Systems
5.0 ★
Google Rating
Get a Free Quote
★★★★★

"John Carter made a wonderful service solving my problem. He solved the phone connection problem during our transition from Comcast to AT&T. I appreciated his help a lot."

Young Lee

★★★★★

"I had no idea what to look for setting up IT for my new medical practice, and John Carter was kind, thorough, helpful, and very responsive. He went above and beyond!"

Michelle Suhendra

★★★★★

"Cannot say enough good things about John Carter and the Telmart team. Knowledgeable, personable, great turnaround time. Telmart is top notch!"

Vanessa Jeans, Limestone Commercial