SIP Trunking · Thunder Bay
Replace your PRI lines and cut costs.
Already have a PBX? Connect it to the public phone network through DVGVoIP SIP trunks and cut your line costs dramatically.
What Is SIP Trunking?
A SIP trunk is a virtual phone line that connects your existing PBX to the outside world over your internet connection — replacing traditional analog or PRI lines entirely.
Instead of paying per physical line, you pay per concurrent call channel. A business that rarely has more than 5 calls at once pays for 5 channels, not 20 idle copper pairs.
DVGVoIP SIP trunks work with 3CX, Cisco, Avaya, Asterisk, and most SIP-compatible PBX systems. If your PBX can accept SIP, we can connect it.
SIP Trunk Features
- Unlimited concurrent channels available
- Local Thunder Bay and Northern Ontario DIDs
- Toll-free number support
- Unlimited Canada & US calling included
- E911 CRTC-compliant service
- Number porting — keep your existing numbers
- Failover to backup destination on outage
- Call detail records and usage reporting
- Compatible with any SIP PBX
SIP vs. Traditional PRI — The Numbers
The math almost always favours SIP trunking for Northern Ontario businesses.
Traditional PRI
- 23 fixed channels per T1 — pay for all of them
- $400–$900/month per PRI circuit
- Long-distance charges on top
- Weeks lead time to add capacity
- Physical hardware at each site
- Single point of failure
DVGVoIP SIP Trunking
- Pay only for channels you actually use
- $25/channel (1–5), $20/channel (6–20), custom at 21+
- Canada & US long distance included
- Add channels in minutes
- No on-site hardware required
- Automatic failover built in
Connecting to Your Existing PBX
If you have an existing PBX investment you want to keep, SIP trunking is the right path. DVGVoIP's team will configure the SIP credentials, dial plans, and failover routing to work seamlessly with your current system.
Common PBX systems we connect:
- 3CX (on-premise or cloud)
- Cisco CallManager / CUCM
- Avaya IP Office
- Asterisk / FreePBX
- Mitel / ShoreTel
- Any SIP-compliant PBX
Not sure if your PBX is compatible? Call us — we'll tell you in minutes.
Getting Set Up
- Assessment — We review your current PRI setup and call volumes.
- Channel sizing — We right-size your trunk based on real usage data.
- Configuration — We provide SIP credentials and assist with PBX setup.
- Number porting — Your existing numbers move to our platform.
- Cutover — Switch happens in minutes, not days.
Who SIP Trunking Is For
SIP trunks make sense any time you want to keep your existing PBX and cut line costs — or need more flexible capacity.
Businesses With an Existing PBX
Keep your 3CX, Cisco, Avaya, or Asterisk system. SIP trunks replace aging PRI or analog lines at a fraction of the cost — no rip-and-replace required.
High Call Volume Operations
Pay only for the simultaneous channels you actually use. A 30-seat team that peaks at 12 concurrent calls pays for 12 channels — not 30 idle lines.
Multi-Site Businesses
One SIP trunk group serves all locations. Route calls between Thunder Bay, Timmins, and Marathon internally — no inter-office long distance charges.
Expiring PRI Contracts
When your PRI contract is up for renewal, that's the time to act. DVGVoIP can move you to SIP trunking seamlessly — often at half the monthly cost.
Why DVGVoIP for SIP Trunking
DVGVoIP is your local Northern Ontario SIP provider — not a national carrier with a call centre queue. We right-size your trunks based on real call data, configure interoperability with your PBX, and stay available when anything needs adjusting.
- 3CX Silver Partner — the company tier 3CX assigns to its channel
- Local Thunder Bay team — not offshore support
- Month-to-month service — no 3-year lock-in
- One bill for trunks, numbers, porting, and support
- Canadian DIDs and CRTC-compliant E911 included
Savings Snapshot
Replacing a single PRI circuit with DVGVoIP SIP trunking typically saves $200–$600/month — before accounting for included long distance.
- Eliminate $400–$900/mo PRI circuit fees
- Canada & US long distance included
- Add channels in minutes, not weeks
- No hardware maintenance contracts