SIP trunking
Trunks for the PBX you already run.
Connect any PBX to the public telephone network over a single internet connection. Standard SIP — if your system speaks it, it registers with us.
From $4.95 CAD/mo metered, or $45.00 CAD/channel per month if you would rather budget a flat figure.
- 0.000INVITEsip:+14035550118@ca.reliaring.com
- 0.041100 Trying
- 0.312180 Ringing
- 2.184200 OKSDP answer
- 2.191ACK
- 2.194RTP / SRTPmedia establishedlive
Works with the phone system you have.
Standard SIP protocol. If your PBX speaks SIP, it works with ReliaRing.
- Microsoft TeamsDirect Routing for Teams Phone
- Cisco WebExBYOC for WebEx Calling
- FreeSWITCHOpen-source telephony platform
- AsteriskOpen-source PBX framework
- 3CXSoftware-based PBX
- Any SIP PBXStandard SIP protocol
What every trunk carries.
The same feature set on the pay-as-you-go plan and the committed one. Nothing here is an upgrade you buy later.
- Instant provisioning
- SIP credentials delivered in minutes, not days. Configure your PBX and start routing calls immediately.
- US and Canada coverage
- Local and toll-free numbers across Canada and the US, plus international termination, with CNAM and E911.
- SRTP and TLS encryption
- End-to-end encrypted signalling and media. TLS 1.2+ for SIP, SRTP for voice. IP whitelisting available.
- STIR/SHAKEN attestation
- Full attestation caller ID verification. Your calls show as verified, improving answer rates and reducing spam flags.
- Real-time analytics
- Call detail records, MOS quality scores, jitter and latency metrics, and usage dashboards — all in real time.
- Geo-redundant infrastructure
- Two independent regions (Canada Central and East) with automatic failover. Primary and secondary SIP endpoints for your PBX.
Two regions. Automatic failover.
Canada Central and Canada East run independently. Point your PBX at a primary and a secondary SIP endpoint, and a region can fail without your calls stopping.
Where calls terminate
- Landlines and mobile
- Toll-free800 / 888 / 877
- International200+ countries
Signalling over TLS, media over SRTP. Registration or IP whitelisting, whichever your PBX prefers.
Rates
Metered, or a flat rate per channel.
Pay-as-you-go suits low or variable volume. Committed channels suit a busy queue and a budget you have to forecast. No contract either way.
Pay-As-You-Go
Prepaid trunk — no per-channel fees
- Inbound to local numbers
- Free
- Toll-free inbound
- from 3.4¢/min
- Outbound domestic
- from 2.8¢/min
- International
- from 2¢/min
- Trunk connection: $4.95 CAD/mo + usage
- No per-channel fee — you pay for minutes used
- 1x E911 location included
Committed Channels
Flat monthly rate per channel
$45.00CAD /ch/mo
One concurrent call per channel. Outbound minutes are billed against your rate deck.
- Volume discount
- 10% off
- Monthly total
- $405.00 CAD
- Flat per-channel monthly price
- Outbound billed against your rate deck
- Volume discounts from 10 channels
- Predictable monthly costs
Volume discounts
Applied automatically to the committed-channel plan. The calculator above uses these rates.
| Channels | Discount | Per channel (CAD) |
|---|---|---|
| 1–9 | — | $45.00 |
| 10–49 | 10% | $40.50 |
| 50–99 | 20% | $36.00 |
| 100+ | 30% | $31.50 |
Add-ons
Billed per month on either plan. Multiple DIDs can share one E911 location.
| Add-on | What it is | Price (CAD) |
|---|---|---|
| Local DID | Phone number | $4.95/mo |
| Toll-Free DID | 1-800/888/877 | $9.95/mo |
| E911 Service | 1 included free | $2.95/mo extra |
Technical specifications.
What your PBX needs to agree with before it registers.
Codecs
- G.711 u-law/a-law (PCMU/PCMA)
- G.729
Security
- TLS 1.2+ signalling
- SRTP encryption
- IP whitelisting
Protocol
- SIP over UDP/TCP
- SIP over TLS
- RFC 3261 compliant
- DTMF (RFC 2833)
Redundancy
- Canada Central + Canada East
- Auto failover
- Load balancing
Questions people ask first.
What is SIP trunking?
SIP trunking is a service that connects your existing phone system (PBX) to the public telephone network (PSTN) over the internet. Instead of using traditional phone lines, calls are made and received over your internet connection using the SIP protocol.
What equipment do I need?
You need an IP-enabled PBX (like FreeSWITCH, Asterisk, 3CX, Cisco, or Microsoft Teams) and a reliable internet connection. We provide the SIP credentials and technical documentation for configuration.
What is the difference between pay-as-you-go and committed channels?
Metered is prepaid: a small monthly trunk connection fee plus per-minute usage, suited to low or variable volumes. Channel plans charge a flat monthly price per concurrent channel, which makes the line item predictable when you run a lot of simultaneous calls. Outbound minutes are billed against your rate deck on both.
How many channels do I need?
A channel represents one concurrent call. If you expect 10 simultaneous calls at peak times, you need 10 channels. Most businesses need 1 channel per 4–5 phone users. We can help you estimate based on your call patterns.
Do you support Microsoft Teams Direct Routing?
Yes. We offer Microsoft Teams Direct Routing as a dedicated service. Visit our Teams Calling page for specific pricing and setup information.
Do you support Cisco WebEx Calling?
Yes. We support WebEx Calling BYOC (Bring Your Own Carrier). You can connect your existing WebEx Calling deployment to our SIP trunks. Visit our WebEx Calling page for details.
What codecs do you support?
We support G.711 (u-law and a-law) and G.729. We recommend G.711 for best quality or G.729 where bandwidth is tight.
Do you offer failover and redundancy?
Yes. We run geo-redundant infrastructure across two Canadian regions (Central and East) with automatic failover. You can configure primary and secondary SIP endpoints for maximum reliability.
Is E911 included?
Yes. One E911 location is included with every Trunk Connection at no extra cost. Additional E911 locations are $2.95 CAD / $2.25 USD per month each — and multiple DIDs can share the same location. Every location gets E911 service that meets Canadian (CRTC) and US (FCC) emergency-calling requirements.
Can I port my existing numbers?
Yes. You can port your existing phone numbers to our SIP trunks. Porting typically takes 5–10 business days depending on your current carrier.
Ready to connect your PBX?
Get your SIP credentials in minutes. No contracts, no setup fees, no surprises.