PHONE SYSTEMS

Connect your PBX.
Keep your business talking.

SIP trunking powered by VoxTelesys, with TSN helping connect compatible business phone systems to the public telephone network.

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A CLOSER LOOK

Connect calling service to the phone system you choose.

SIP trunking is the connectivity layer for a compatible business PBX. The PBX handles your internal calling behavior; the trunk connects it to outside callers. Separating these roles makes it easier to understand what needs configuring, which provider is responsible for an issue, and what should be tested before a cutover.

Retain a compatible PBX

Review a carrier change while keeping a phone system that still meets your operational needs. Compatibility and configuration must be checked before service is ordered.

Support a new PBX deployment

Plan the calling connection alongside the new system rather than leaving number routing and external-call testing until the end of the installation.

Revisit calling capacity

Use actual concurrent-call needs and business calling patterns to shape the proposal. A staff count alone does not describe how many calls need to occur at once.

WHAT WE HELP WITH

A solution built around your requirements.

PBX connectivity

Review compatibility, calling needs, and the number of simultaneous calls before choosing your service.

Number transition

Plan number transfers and cutover timing to support a smoother move from your existing carrier.

Calling configuration

Coordinate routing, emergency-calling requirements, and troubleshooting with a single TSN contact.

IS THIS THE RIGHT FIT?

Start with the needs of your business.

Businesses with an existing or planned SIP-compatible PBX that need calling connectivity.

Your proposal will define the selected services, implementation responsibilities, and support scope. We’ll review compatibility and any service-specific requirements before moving forward.

HOW WE WORK

A clear plan, from first conversation to handoff.

01 · Discover

We start with your business, users, current environment, and what needs to change.

02 · Design

We define the recommended solution, responsibilities, scope, and a practical deployment plan.

03 · Deliver & support

We coordinate the agreed work, validate the setup, and explain the next steps for your team.

PLAN YOUR NEXT STEP

What to discuss with TSN

Share the PBX make and version, number inventory, recent carrier records, expected simultaneous calls, and network details. Identify inbound and outbound calling tests, number-transfer responsibilities, and a cutover contact. Specialty services such as fax, alarms, or door phones should be reviewed individually.

COMMON QUESTIONS

Good questions. Clear answers.

Does SIP trunking replace our PBX?

No. This service supplies calling connectivity for a compatible system. PBX software, handsets, internal call flows, and ongoing system administration need to be accounted for separately in the agreed scope.

What happens before numbers move?

The project should confirm transfer eligibility and records, configure routing, test the agreed calling functions, and establish a cutover plan. Transfer timing is confirmed through the carrier process.

LET’S PLAN YOUR NEXT STEP

Bring us the challenge.
We’ll help find the fit.

Tell us what you want to improve, connect, or protect.

Request a Quote →

Connect your PBX.Keep your business talking.