// business telephone · since 1996

Business phone lines
that just keep working.

Your business stays connected to customers, employees, and vendors only if the phones work. 1stel keeps them working with POTS, SIP Trunks, and PRI Trunk systems. Unlike off-the-shelf retail products, we build each solution to fit your business. And when you call, a real person answers. No call center, no runaround.

Call (877) 771-7835 Get a free quote

Texas-based since 1996
In-house technicians
AT&T Platinum

// voice line types On the line

FIG.01 — POTS · SIP · PRI, one in-house team

// the lineup

Three ways to wire your phones.

POTS, SIP, or PRI — each built to fit how your business actually runs, and each supported by the same in-house Texas team.

POTS

Business POTS

1stel business POTS (Plain Old Telephone Service) is a dependable analog phone line for elevators, alarms, fax, and everyday business calls.

Caller ID
Call Waiting
Three-way Calling
Call Forwarding
Voicemail
In-house support, not a call center

SIP

SIP Trunks

1stel SIP (Session Initiation Protocol) Trunks deliver Voice over IP (VoIP) that scales with your business, adding or cutting lines as you grow.

Outbound Calling
Inbound Calling
Toll Free Calling
Emergency Services
Scalable System
In-house support, not a call center

PRI

PRI Trunks

1stel’s PRI (Primary Rate Interface) Trunks carry many concurrent calls over a single connection, with dedicated bandwidth reserved for voice.

Direct Inward Dialing (DID)
Dedicated Bandwidth for Voice Calls
Toll Free Calling
Emergency Services
In-house support, not a call center

// business phone

Let's connect

We'll work with you to identify your needs and build a custom quote. No call center, no runaround — just a real person who knows your setup.