Freedom251 › SIP Trunking Providers
SIP.US Cloud SIP Trunking
What SIP.US Cloud SIP Trunking is
SIP.US Cloud SIP Trunking connects an existing PBX to cloud SIP trunking, with flexible channels and no contracts. A self-service control panel manages trunks, phone numbers, provisioning, billing, and call data records. Each SIP channel includes unlimited outbound calling to the US48 states and Canada, plus unlimited inbound calling to local numbers; each concurrent incoming or outgoing call requires a channel. Records are viewable near real time, cover today and the past year, and can be downloaded as CSV files. A searchable number database covers the US and Canada, with most DIDs provisioned instantly. Customers choose their broadband provider; G.711 calls use approximately 85kbps up/down, and G.729 is also supported. International toll-fraud protection can terminate unauthorized calls, disable international calling, and alert the customer and Network Operations Center. Inbound DID calls can route to primary or secondary IP-PBX systems or a backup PSTN number when routing fails. The service supports SIP-enabled PBX systems and Microsoft Teams connections. It is available only to businesses based in the United States and Canada. SIP channel plans are listed at $19.99 a year for yearly plans and $24.95 a month for month-to-month service; a free trial is available, but there is no free plan.
Who it suits
SIP.US suits businesses in the United States or Canada that use a SIP-enabled PBX or Microsoft Teams and need cloud trunking. It also offers call records, number provisioning, and inbound failover options.
What it does well
- Includes unlimited US48 and Canada outbound calling per channel.
- Provides near-real-time call records and CSV downloads.
- Inbound DID calls can fail over to alternate destinations.
- Real-time international toll-fraud protection is available.
- Free trial is available.
What to know first
- Service is limited to US- and Canada-based businesses.
- One channel is required per concurrent call.
- No free plan is offered.
Limits
Each SIP channel supports one concurrent incoming or outgoing call. The monthly SIP channel plan is $24.95 a month per channel, while the yearly plan is $19.99 a year per channel; both include unlimited US48 and Canada calling and have no setup fee.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| US48 Local DID | monthly per number · $1.00/number one-time setup · CNAM included | $1 a month |
| Business texting — 500 messages | per month · 500 messages · $0.04/message overage | $19.95 a month |
| SIP channels — Yearly Plans | per channel per month · Unlimited US48 and Canada calling · No setup fee | $19.99 |
| SimpleFAX™ Service | per FAX line/month · 1,000 pages included · $0.10/additional page · $25.00 port fee | $24.95 a month |
| SIP channels — Month to Month | per channel per/month · Unlimited US48 and Canada calling · No setup fee | $24.95 a month |
| Nomadic e911 Enhanced DID | monthly per number · $2.00/number setup · 911 address registration | $2.50 a month |
| Toll-free DID | monthly per number · PLUS $0.02/minute · $3.00/number setup | $2.95 a month |
| Business texting — 1,000 messages | per month · 1,000 messages · $0.02/message overage | $29.95 a month |
The first 8 of 10 plans, as sip.us lists them, read 1 Oct 2026. The maker's own page has the final word. Every plan
Getting started
- Visit the SIP.US website.
- Check that your business is based in the United States or Canada.
- Choose a free trial or a paid service plan.
- Select SIP channels based on the number of concurrent calls needed.
- Connect a supported SIP-enabled PBX or Microsoft Teams.
- Use the control panel to manage trunks, numbers, provisioning, and billing.
Verdict
SIP.US provides cloud trunking for existing PBX systems, with channel-based calling, call records, and failover options. Businesses should confirm eligibility and account for one channel per simultaneous call.
Questions
Is SIP.US free?
No free plan is offered. A free trial is available.
How much do SIP channels cost?
The yearly plan is $19.99 a year per channel. The month-to-month plan is $24.95 a month per channel.
How many simultaneous calls does a channel support?
One SIP channel is required for each concurrent incoming or outgoing call.
Which platforms does SIP.US support?
The listed platforms are Android, API, iOS, and web. Supported connections also include SIP-enabled PBX systems and Microsoft Teams.
Can I bring an existing number?
Yes. Number porting is available.
Where can businesses use the service?
SIP.US services are available only to businesses based in the United States and Canada.
Facts from SIP.US Cloud SIP Trunking's own pages
- Bandwidth
- Customers can choose their own broadband provider, and G.711 calls use approximately 85kbps up/down while G.729 is supported. · sip.us, 1 Oct 2026
- Calling coverage
- Each SIP channel includes unlimited outbound calling to the US48 states and Canada and unlimited inbound calling to local numbers. · sip.us, 1 Oct 2026
- Call records
- CDRs are viewable near real-time, include today and the past year, and can be downloaded as CSV files. · sip.us, 1 Oct 2026
- Concurrent calls
- One SIP channel is required for every concurrent incoming or outgoing call. · sip.us, 1 Oct 2026
- Control panel
- The self-service control panel manages SIP trunks, telephone numbers, provisioning, billing and call data records. · sip.us, 1 Oct 2026
- DID coverage
- SIP.US offers a searchable database of numbers across the US and Canada, with most DIDs provisioned instantly. · sip.us, 1 Oct 2026
- Eligibility
- SIP.US services are available only to businesses based in the United States and Canada. · sip.us, 1 Oct 2026
- Failover
- Inbound DID calls can route to primary and secondary IP-PBX systems or a backup PSTN number when routing fails. · sip.us, 1 Oct 2026
- Fraud protection
- Real-time international toll fraud protection can terminate unauthorized calls, disable international calling and alert the customer and Network Operations Center. · sip.us, 1 Oct 2026
- Free trial
- Free trial accounts include 60 minutes of outbound calling to anywhere in the US48, with a SIP trunk created after email confirmation. · sip.us, 1 Oct 2026
- Integrations
- Supported SIP-enabled PBX systems include 3CX, Asterisk, Elastix, Cisco, Avaya and Grandstream, plus open-source telephony applications. · sip.us, 1 Oct 2026
- Microsoft Teams
- SIP.US connects SIP trunks with Microsoft Teams to provide enterprise voice and collaboration in one platform. · sip.us, 1 Oct 2026
- Product
- SIP.US provides cloud SIP trunking that connects an existing PBX to reliable SIP trunking with flexible channels and no contracts. · sip.us, 1 Oct 2026
- Redundancy
- The service uses Tier-1 upstream providers and multiple US gateways to provide a redundant network and avoid single points of failure. · sip.us, 1 Oct 2026
- Security
- BCM One says it uses usernames, passwords and industry encryption methods to protect sensitive data transmission, while acknowledging no security practice is foolproof. · sip.us, 1 Oct 2026
- Support
- Customers can use the knowledge base or call support at 800-566-9810. · sip.us, 1 Oct 2026
Where SIP.US Cloud SIP Trunking stands on Freedom251
- SIP Trunking Providers#4 of 27
- Toll-Free Number Services#5 of 16
- Telephony Software#15 of 29