What SIP.US does

SIP.US, a BCM One company operating as SIP.US LLC out of Alpharetta, Georgia, is a self-serve business-class SIP trunking provider that connects on-premise IP-PBX systems and analog telephone adapters to the public switched telephone network over broadband internet connections, replacing legacy PRI circuits. The platform centers on a self-service Control Panel (login.sip.us) for real-time provisioning of SIP channels, DID numbers across 6,000+ US rate centers, call data records, and billing, supported by a Tier-1 redundant network with SIP proxies in Atlanta and Dallas. Adjacent modules include Nomadic e911, International Toll Fraud Protection (automated anomaly detection that kills unauthorized calls), CNAM caller-name delivery, PSTN failover, Business SMS with messaging APIs, and SimpleFAX/Fax-to-Email over AudioCodes and TDM circuits.

Revenue is generated through prepaid monthly or annual subscriptions for unlimited SIP channels ($24.95 month-to-month or $19.99 annual), per-number rental fees for local and toll-free DIDs, tiered Business SMS packages, and SimpleFAX/Fax-to-Email plans, supplemented by one-time number porting and CNAM update fees. The go-to-market is pure product-led growth with no channel partners or resellers: free trial (60 minutes of calling to US48/Canada, no credit card), SEO, vertical-specific landing pages (automobile dealers, contact centers, hotels, K-12 schools, medical practices, nonprofits, professional services, restaurants, local governments), a content blog, and Capterra validation. The certified partner ecosystem spans 3CX, Microsoft Teams, Asterisk, FreePBX, FreeSWITCH, Switchvox, Elastix, Avaya, Cisco, NEC, Mitel, Yeastar, Zultys, plus AudioCodes and Digium gateways for legacy PBX interop.

Name

SIP.US

Legal name

SIP.US LLC

Website

https://sip.us

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

SIP.US, a BCM One company, is a self-serve SIP trunking provider offering unlimited cloud-based voice channels, DIDs across 6,000+ US rate centers, and adjacent SMS/fax modules to SMBs and mid-market businesses running IP-PBX systems, delivered via a prepaid, no-contract online platform.

Ownership category

akta.pro rank

Product category

Cloud SIP Trunking / Business VoIP Telecommunications

SIC

Telephone Communications (No Radiotelephone) (4813), Services-Telephone Interconnect Systems (7385)

akta.pro primary industry

SIP Trunking & Voice Termination (HDAIAHAC)

akta.pro secondary industries

VoIP Access & ITSP Services (HDAIAHAD), VoIP/ATA & Integrated Voice Gateways (CPE) (HDAFAIAJ)

Keywords

• SIP trunking service
• Cloud VoIP trunking
• Business phone service
• PBX connectivity
• DID telephone numbers

Headquarters

HQ city

Alpharetta

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Technology or R&D, Operations, Infrastructure, Personnel, Marketing or Sales

Revenue model

1. SIP Trunk Channels (Unlimited): Prepaid monthly or annual subscription for unlimited SIP trunk channels including local and long distance calling to US48 states and Canada. Pay-per-channel model with no setup fees.
2. DID Telephone Numbers: Monthly rental fees for Direct Inward Dial numbers - local DIDs at $1.00/month, toll-free DIDs at $2.95/month plus per-minute charges. Includes CNAM service.
3. Business Texting: Message packages from 200 to 3,000 messages per month with overage rates. Includes 10DLC and toll-free messaging.
4. SimpleFAX Service: Per-fax-line monthly subscription at $25.00/month including 1000 pages send/receive, with $0.10 per additional page. Optional AudioCodes device at $129.00.
5. Fax-to-Email: Per-number monthly subscription at $14.95 including 500 pages per month, with $0.10 per additional page.
6. Number Porting: One-time port fees of $10.00 per number for porting existing numbers. Volume discounts available for ports of 10+ numbers. Port-out fee of $5 per number.
7. CNAM Updates: First CNAM setting included free; subsequent changes at $1 per update.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

SIP.US provides on-demand, cloud-based SIP trunking services that connect business IP-PBX systems and analog telephone adapters to the public telephone network over the internet, replacing legacy PRI lines. Customers purchase unlimited SIP channels on a prepaid monthly or annual subscription at $24.95/channel/month with no setup fees or contracts, combined with local and toll-free DID numbers across more than 6,000 US rate centers. Add-on services include Business SMS with messaging APIs, SimpleFAX and Fax-to-Email for TDM-based fax, Nomadic e911, CNAM, toll fraud protection, PSTN failover, and Number Porting.

Product overview

SIP.US is a cloud-based SIP trunking service provider offering a unified communications platform. The core product is the SIP Trunking Service with unlimited SIP channels that connect business PBX systems to the PSTN via the internet. The platform centers around a self-service Control Panel for managing trunks, numbers, and call data records. Add-on modules include Business SMS with messaging APIs, SimpleFAX and Fax-to-Email for fax capabilities, Nomadic e911 for emergency services, CNAM for callerID, Toll Fraud Protection, and PSTN Failover for business continuity. DID telephone numbers (local and toll-free) are available across over 6,000 US rate centers. The service integrates natively with Microsoft Teams and supports any SIP-enabled PBX system.

Differentiator

Problem solved

Functional benefit

Products and services

• SIP Trunking Service On-demand, cloud-based SIP trunking service that connects business IP-PBX systems and analog telephone adapters to the public telephone network over the internet, replacing traditional PRI lines. Sold in unlimited SIP channels for concurrent call capacity at $24.95/channel/month.
• DID Telephone Numbers Direct Inward Dial telephone numbers offered as monthly rentals: local US48 DIDs at $1.00/month and toll-free DIDs at $2.95/month with per-minute usage. Available across more than 6,000 US rate centers; CNAM CallerID service is included.
• Business SMS Business texting solution offering SMS and MMS messaging via integrated web, iOS and Android apps, plus full-featured Messaging APIs for existing workflows. Sold in 200 / 500 / 1,000 / 3,000 message monthly packages with overage rates.
• SimpleFAX Service Fax service that uses AudioCodes HTTPS FAX Analog Telephone Adapter hardware to capture faxes over traditional copper PRI lines, eliminating T.38 FoIP issues. Priced at $25/month per fax line including 1,000 send/receive pages.
• Fax-to-Email Traditional fax-to-email and email-to-fax service delivered over TDM (PRI) circuits at $14.95 per number per month including 500 pages, with $0.10 per additional page.
• Number Porting Service to port existing telephone numbers to the SIP.US network at $10.00 per number with volume discounts available for ports of 10+ numbers; port-out fee is $5.00 per number.

Quantifiable outcome

• 25-65% telecom cost reduction vs legacy PRI lines
• +3 more outcomes

Named customers7 records

Segments11 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration17 records

AI capability1 record

Feature8 records

Partnerships

Eight partnerships are on record, tiered core, recommended, minor and parent.

• 3CXcoreTechnology or Integration3CX is a top-tier Windows-based IP phone system. SIP.US is a certified SIP trunk partner tested and certified by 3CX. Compatible with all 3CX installation modes and requires no manual configuration. Preferred status for easy PBX connection.
• Microsoft TeamscoreTechnology or IntegrationSIP.US integrates with Microsoft Teams, connecting SIP trunks with Teams for enterprise voice and collaboration capabilities in one unified platform.
• Host VirtualrecommendedTechnology or IntegrationRecommended hosted PBX provider partner. Host Virtual offers hosted VoIP appliances and specifically provides FreePBX distributions that work seamlessly with SIP.US.
• RentPBXrecommendedTechnology or IntegrationRecommended hosted PBX provider partner for customers seeking hosted VoIP solutions to use with SIP.US trunking.
• tollfreenumbers.comminorChannel Partner/ Reseller/ DistributorPartnership for toll-free vanity numbers. SIP.US partners with tollfreenumbers.com to offer vanity toll-free number purchasing with smooth porting to SIP.US.
• AudioCodesminorOEM/ Whitelabel/ Licensing PartnerAudioCodes HTTPS FAX Analog Telephone Adapter device (model not specified) offered at $129.00 for SimpleFAX service. Device comes pre-configured and ready for use.
• BCM OneparentOthersSIP.US is a BCM One Company. BCM One is the parent company of SIP.US.
• 1-800-Free-411minorOthersFree directory assistance service used for 411 directory information calls routed on the SIP.US system.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Vonage Business: Vonage Business provides unified communications and SIP trunking capabilities for SMB and mid-market — overlapping with SIP.US where SIP trunking is sold as part of a broader voice bundle.
• Nextiva: Nextiva is a UCaaS provider offering VoIP/SIP trunking for SMB — competes with SIP.US in the same SMB voice communications segment, but with a broader hosted-PBX bundle.
• Twilio (Elastic SIP Trunking): Twilio offers Elastic SIP Trunking as part of its CPaaS portfolio, serving developers and SMBs looking for programmable voice — broader platform, but SIP trunking product overlaps directly with SIP.US.
• 8x8: 8x8 is a UCaaS provider offering SIP trunking alongside hosted PBX and contact center — competing with SIP.US in the SIP trunking layer for mid-market and enterprise customers.

Direct peers

• Telnyx: Telnyx is an ITSP providing SIP trunking, messaging, and voice services with owned private network infrastructure, target customers overlapping SIP.US's SMB and mid-market base.
• IntelePeer: IntelePeer is a SIP trunking and UCaaS provider targeting mid-market and enterprise voice customers, with a delivery model and PBX-interoperability focus similar to SIP.US.
• Flowroute: Flowroute (now part of Sinch) is a SIP trunking ITSP focused on SMB and mid-market customers with a self-serve/developer-friendly API + control panel model — virtually identical positioning to SIP.US.
• Bandwidth Inc. Bandwidth offers SIP trunking and communications APIs for SMB and enterprise, with an SIP-focused product line that competes directly with SIP.US for inbound/outbound PSTN traffic.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/sipdotus

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SIP.US