SIP Trunking

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Instant Provision

Activate trunks in minutes, not days

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High Capacity

Handle thousands of concurrent calls

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Number Porting

Keep your existing business numbers

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Global Coverage

Connect offices worldwide seamlessly

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Failover Routing

Automatic rerouting for reliability

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Flexible Channels

Scale up or down as needed

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HD Voice

Crystal-clear audio quality always

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Secure SIP

Encrypted signaling and media

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BYOPBX

Works with any SIP-compatible PBX

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Analytics

Monitor usage and call quality live

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Cost Savings

Reduce telecom bills significantly

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24/7 Support

Expert help whenever you need it

SIP Trunking in Canada for Your Business PBX

Telephonica SIP trunking connects a compatible business PBX to the public telephone network over an internet connection. Keep control of your phone system while adding flexible call capacity, number porting and routing options for your business in Canada.

Whether you manage one office, multiple locations or a contact centre, start with the numbers and simultaneous calls your team needs. Request a SIP trunking quote or call +1 (514) 360-0400 to discuss your PBX and migration plans.

What Is SIP Trunking and How Does It Work?

SIP stands for Session Initiation Protocol. A SIP trunk provides a virtual connection between your PBX and a telephone service provider, allowing your team to make and receive external calls without traditional physical telephone lines. Your PBX manages extensions and internal call handling; the SIP trunk provides connectivity to external telephone numbers.

A trunk can carry multiple simultaneous calls. Call capacity is commonly described in channels, while a phone number identifies where calls are directed. The number of employees or phone numbers does not automatically equal the number of channels you need.

Business SIP Trunking Features

  • Bring your own PBX: Connect a compatible SIP-enabled phone system. Confirm your model, software version and configuration with Telephonica before migration.
  • Flexible call capacity: Plan channels around peak inbound and outbound calls, with room for seasonal demand and growth.
  • Number porting: Request a review of your existing business numbers and coordinate a transfer where eligible.
  • Failover routing: Plan alternative destinations for incoming calls if your primary PBX or connection becomes unavailable.
  • Voice quality and security: Review supported codecs, encrypted signalling and media options, and your network configuration during setup.
  • Usage visibility: Monitor calling activity and review usage as your business requirements change.
  • Support: Access Telephonica customer support for assistance with service and troubleshooting.

SIP Trunking vs. a Hosted Phone System

SIP trunking is a fit when you already operate a PBX and want to connect it to a provider for external calls. A hosted phone system places the PBX functionality with the provider. The best choice depends on who will manage your phone system, your existing equipment and the features your team needs. Explore Telephonica business phone solutions if you are also considering a hosted service.

Plan Your SIP Trunking Setup

  1. Review your current system. Share your PBX model, software version, office locations and existing phone numbers.
  2. Size call capacity. Estimate your busiest period for concurrent inbound and outbound calls, including contact centre campaigns.
  3. Check network readiness. Review internet bandwidth, latency, jitter, firewall settings and quality-of-service configuration with your IT team.
  4. Coordinate migration. Confirm number eligibility, porting documents, routing requirements and a cutover date before cancelling existing service.
  5. Test before launch. Validate inbound and outbound calling, caller ID, audio, transfers and configured failover destinations.

SIP Trunking FAQs

Select a question to view the answer.

Can I keep my existing business phone numbers?

Telephonica offers number porting. Eligibility and timing depend on the numbers, the current carrier and the required documentation. Ask for a porting review and keep your existing service active until the transfer is confirmed.

Will SIP trunking work with my current PBX?

A SIP-enabled PBX may connect directly, while some legacy systems require a compatible gateway. Compatibility depends on the specific system and configuration. Send Telephonica your PBX model and software version for review before ordering.

How many SIP channels does my business need?

Base capacity on the maximum number of simultaneous external calls you expect, rather than the total number of employees. For example, ten concurrent external calls require capacity for at least ten calls. Allow additional capacity for busy periods, call forwarding and growth.

How much does SIP trunking cost in Canada?

A useful quote accounts for call capacity, telephone numbers, calling destinations, usage and any setup or porting requirements. Review Telephonica pricing information and request a SIP-specific quote to confirm applicable rates, fees and terms.

What happens if my internet connection fails?

Your PBX needs working connectivity for internet-based calls. Configured failover routing can redirect incoming calls to an alternative destination, but it does not restore your local internet connection. Discuss backup internet, power and routing arrangements before deployment.

Is SIP trunking secure?

Security depends on the provider connection and your PBX configuration. Review supported encryption, access restrictions, strong credentials and call permissions with your IT team. Confirm which protections are available and enabled for your deployment.

How long does activation take?

Provisioning and number porting are separate steps. Your launch date depends on account setup, PBX readiness, testing and any number transfers. Ask Telephonica to confirm the timeline for your specific installation.

Get a SIP Trunking Quote

Tell us about your PBX, current numbers, peak simultaneous calls and calling destinations. Telephonica can review your requirements and help you plan the next step. Email sales@telephonica.ca, call +1 (514) 360-0400 or book a consultation.