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Business Plan · SIP Trunks

SIP Trunks

Voice solutions powered by your internet.

As a Canadian SIP trunk provider, we give you a flexible way to maximize voice service on your existing IP phone system or traditional PBX — all delivered over your current internet. Cut telecom costs, keep complete reliability, and scale easily, with SIP trunking service across Toronto, Ontario and all of Canada.

Get a SIP Trunk QuoteTalk to Voiswitch · 416-800-1110
Key Features

Flexible voice over your own internet

  • Works with your existing PBX

    Connect the IP or traditional phone system you already own — no rip and replace.

  • Scalable channels

    Add or remove concurrent call channels as your business grows or slows.

  • Number porting

    Bring your existing business numbers with you and keep what customers know.

  • Direct dial (DID) numbers

    Assign dedicated local numbers to people, teams, or departments.

  • Failover & call continuity

    Automatic rerouting keeps calls flowing if a connection is interrupted.

  • Business-grade call quality

    Clear, reliable voice engineered for professional day-to-day calling.

Pricing

Pay per channel, scale as you grow

Unlimited Canada

Popular

$19.99/channel/mo

  • Unlimited Canada calling
  • No setup fees
  • Reduced call costs
  • 24/7/365 support
Get a Quote

Unlimited Canada & USA

$29.99/channel/mo

  • Unlimited Canada & USA calling
  • No setup fees
  • Reduced call costs
  • 24/7/365 support
Get a Quote

On-Prem IP PBX Install

Contact Us· Custom quote

  • Unlimited scalability
  • 100s of communication tools
  • Supports multiple locations
  • 24/7/365 support
Talk to Voiswitch

Prices per channel/month in CAD, plus applicable taxes. No setup fees.

Who It's For

Keep your hardware, cut your costs

  • Businesses that already own a PBX

    Keep the phone hardware you invested in and simply switch your voice lines to lower-cost SIP trunks.

  • IT teams & integrators

    Provision flexible channels and DID numbers for clients, with porting and failover handled for you.

  • Multi-location businesses

    Connect offices that want to keep their existing systems while cutting telecom costs across sites.

Switching Made Simple

Switching is easier than you think.

  1. 1

    Talk to us

    A quick consultation to understand your current setup and needs.

  2. 2

    We handle the switch

    We port your existing numbers, configure your system, and train your team — designed to avoid missed calls during migration.

  3. 3

    You go live

    Up and running on a reliable business phone system, backed by local support.

Keep your existing numbers. No long-term contracts.

Get a Quote

SIP trunking questions

How much does SIP trunking cost in Canada?
SIP trunks are billed per channel rather than per line, which is what makes them cheaper than traditional phone lines — and Voiswitch charges no setup fees. Your monthly cost depends on how many concurrent calls you need and whether you want unlimited Canada or Canada-US calling. Size your channels on your busiest hour rather than your phone count, then use our cost estimator for a specific figure.
Do you provide SIP trunking across Canada?
Yes. We're a Canadian SIP trunk provider serving businesses nationwide, with Canadian-based support. Our head office is in Mississauga and we handle on-site work across Toronto, the GTA and southern Ontario, while SIP trunking, number porting and support are available anywhere in Canada.
Is my current PBX compatible?
In most cases, yes. SIP trunks work with virtually any SIP-capable IP PBX, and traditional PBXs can often connect using a gateway. Tell us the make and model of your system and we'll confirm compatibility and the best way to connect it.
How many channels do I need?
A channel is one concurrent call. A good starting point is to estimate the maximum number of calls your business makes and receives at the same time — not your total number of staff. We can review your call patterns with you and right-size your channels, and you can scale up or down as needs change.
Can I port my existing numbers?
Yes. We can port your existing business numbers to your SIP trunks so you keep the numbers your customers already use. We manage the porting process with you to minimize any disruption during the switch.
What happens if my internet or a trunk goes down?
SIP trunks run over your internet connection, so we build in failover. Calls can automatically reroute to a backup connection, mobile numbers, or another location if a trunk or your primary internet is interrupted — helping ensure you don't miss calls. We'll help you design a failover plan that fits your business.
Service Areas

SIP trunking across the Greater Toronto Area

We connect existing phone systems to SIP trunks across the GTA and southern Ontario, and support businesses Canada-wide. Pick your city for local details, or call us and we'll confirm what your system needs.

Peel Region

City of Toronto

Toronto West

Toronto North

Toronto East

York Region

Vaughan, York Region

Vaughan / Markham

Halton Region

Halton Hills

Durham Region

City of Hamilton

Not on the list? SIP trunking works anywhere in Canada — we deploy and support remotely coast to coast. See all service areas.

Related Services

Explore more Voiswitch solutions

Cloud PBX

A complete cloud phone system with no on-site hardware to maintain.

Learn more

Cloud Call Center

Queues, routing, and reporting to keep every customer call moving.

Learn more

On-Premise PBX Installation

Professional installation and support when you need hardware on site.

Learn more

Ready to make the switch?

Get a SIP trunk quote or talk to our team about connecting your existing system.

Get a SIP Trunk QuoteCall 416-800-1110