sipcall
sipcall, operated by Backbone Solutions AG, is a Swiss B2B VoIP provider offering cloud-hosted virtual PBX, SIP trunking, and Microsoft Teams telephony to 40,000+ Swiss SMB and enterprise customers, distributed via direct online sales and a certified partner channel.
- Company typePrivate
- Founded2005
- HeadquartersFeusisberg, Switzerland
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What sipcall does
sipcall is a Swiss business-to-business VoIP telecommunications provider, operated as a brand by Backbone Solutions AG (founded 2005, headquartered in Schindellegi, canton of Schwyz), serving more than 40,000 active customers across Switzerland. The company sells a cloud-hosted virtual PBX (sipcall virtual pbx at CHF 2.90 per phone number per month), SIP trunking into existing IP-enabled phone systems (sipcall sip trunk at CHF 5.90 per trunk per month), and a Microsoft Teams telephony integration that connects Teams users to the Swiss PSTN without a customer-owned SBC at CHF 1 per user per month. The core platform runs on SIP/RTP, is hosted in Swiss data centers, and is extended by a softphone app (iOS, Android, Windows, macOS), an internet connectivity bundle, and fax-over-IP services. Revenue mechanics combine monthly subscriptions, per-minute usage tariffs, flat-rate packages (Swiss Flatrate at CHF 29/month), service-number transaction fees, hardware sales, partner revenue share, and a Backbone VoIP-Whitelabel OEM program for service providers reselling under their own brand.
The go-to-market is hybrid: direct online self-service ordering through sipcall.ch is the primary acquisition surface for SMB and private customers, while a certified partner channel of IT resellers, system integrators, and installation partners handles enterprise deployments and ongoing support. The partner program offers recurring commissions, free workshops and webinars, certification, and dedicated portal access, complemented by annual proprietary events such as the Teams-Telefonie Day (over 600 registrations in 2024) and trade show participation at TEFO, Competec-Hausmesse Connect, and STARFACE Kongress. Management discloses named customers across education (Schule Aarburg, Fernfachhochschule Schweiz), fitness (Kieser Training AG), food and beverage (Brauerei Rosengarten AG), retail (Maison de Boer AG), software (bbv Software AG), and healthcare (MBU Medical Beauty Union Holding AG), with reported cost reductions of 50% versus prior telephony for multiple references.
Operationally sipcall claims 100% uptime in recent years on redundant infrastructure, a 99% (variously 98%) customer recommendation rate, and a 20-year Swiss VoIP operating track record recognized by four consecutive BILANZ Telecom-Rating second-place finishes (2018-2021) and two consecutive Great Place to Work / Best Workplaces Switzerland honors (2024-2026). The company is privately held under Backbone Solutions AG with no disclosed institutional investors, funding rounds, or M&A activity, and serves only the Swiss market. Its single reported AI-adjacent capability to date is a text2speech feature for IVR and voicebox announcements launched in December 2025.
sipcall firmographics
Firmographics- Name
- sipcall
- Legal name
- Backbone Solutions AG
- Website
- https://sipcall.ch
- Company type
- Private
- Founded year
- 2005
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- sipcall, operated by Backbone Solutions AG, is a Swiss B2B VoIP provider offering cloud-hosted virtual PBX, SIP trunking, and Microsoft Teams telephony to 40,000+ Swiss SMB and enterprise customers, distributed via direct online sales and a certified partner channel.
- Ownership category
- akta.pro rank
sipcall industry classification
Industry- Product category
- Cloud Business Telephony / VoIP
- NAICS
- Wired and Wireless Telecommunications Carriers (except Satellite) (51711)
- SIC
- Telephone Communications (No Radiotelephone) (4813)
- akta.pro primary industry
- Cloud PBX & Hosted Telephony (HDAIAHAB)
Keywords
Where sipcall is headquartered
LocationHeadquarters
- HQ city
- Feusisberg
- HQ country
- Switzerland
- HQ region
- Europe
Offices1 record
Markets served
sipcall business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Infrastructure, Technology or R&D, Personnel, Marketing or Sales, Operations
Revenue model
- Subscription Services: Monthly subscription fees for virtual PBX, SIP-Trunk, and Microsoft Teams telephony services. Charges per phone number, SIP-Trunk channel, or user depending on product tier.
- Usage-based Call Charges: Variable charges based on call volume and destination. Customers can opt for flat-rate packages or pay-per-minute tariffs for voice calls.
- Service Numbers: Revenue from premium rate and service telephone numbers with associated call termination fees.
- Hardware and Setup Fees: One-time fees for hardware such as VoIP adapters, phones, and installation/setup services for certain configurations.
- Partner Program Revenue: Recurring revenue share from certified partners offering hosted PBX services to their customers, and wholesale VoIP services through Backbone VoIP-Whitelabel.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Virtual PBX - per phone number |
| Subscription | Monthly | SIP-Trunk - per trunk |
| Subscription | Monthly | Microsoft Teams Telephony - per user |
| Subscription | Monthly | Swiss Flatrate |
| Subscription | Monthly | Voice-/Faxbox |
| Subscription | Monthly | sipcall App - PC versions |
| One time/ perpetual license | Pay-as-you-go | Number Porting Fees |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels8 records
sipcall product offering
Product offeringCore offering
sipcall sells cloud-based business telephony services to Swiss companies, providing a virtual PBX (cloud telephone system), SIP trunks (VoIP connectivity for existing phone systems), and direct Microsoft Teams telephony integration without requiring an SBC. The portfolio is supplemented with cross-platform softphone apps, fax-over-IP, internet connectivity, and number portability. Customers subscribe monthly per phone number, SIP trunk, or Microsoft Teams user.
Product overview
sipcall is a Swiss VoIP telecommunications provider offering a unified communications portfolio centered on three core products: sipcall virtual pbx (cloud-hosted virtual telephone system at CHF 2.90/phone number/month), sipcall sip trunk (VoIP connectivity for existing phone systems at CHF 5.90/SIP trunk/month), and Microsoft Teams Telephony (integrated Teams phone solution at CHF 1/user/month). The offering is complemented by sipcall internet (bundled business internet), sipcall App (iOS/Android/Windows/macOS softphone application), fax solutions (Fax2Mail, Mail2Fax, and Voice-/Faxbox), and partner programs including sipcall hosted pbx and Backbone VoIP-Whitelabel. The product portfolio targets Swiss businesses ranging from small enterprises to large organizations, with services delivered entirely from Swiss data centers.
Differentiator
Problem solved
Functional benefit
Products and services
- sipcall virtual pbx Cloud-hosted virtual telephone system (PBX) providing full business communication features without on-premise hardware. Includes voicebox, IVR, call routing, call queuing, conferencing, and management via web portal. Sold per phone number per month (CHF 2.90).
- sipcall sip trunk VoIP connection service for businesses with existing IP-enabled telephone systems, enabling SIP-based voice connectivity with unlimited simultaneous call channels through a single trunk account. CHF 5.90 per SIP trunk per month.
- Microsoft Teams Telephony Fully integrated telephony solution for Microsoft Teams, connecting users to the Swiss PSTN without requiring a separate SBC (Session Border Controller). CHF 1 per Microsoft Teams user per month.
- sipcall internet Business internet connectivity service bundled with sipcall telephony, providing fast, reliable internet for Swiss businesses combining internet and phone services into a single provider relationship.
- sipcall App Mobile and desktop softphone application available on iOS, Android, Windows, and macOS that lets users make and receive calls using their business phone number on smartphones or computers. Features HD audio codecs, call recording, push notifications, BLF indicators, Office 365 contact integration, and click-to-dial.
- Fax2Mail Fax-to-email service receiving inbound faxes as email attachments (PDF or TIFF), eliminating the need for a physical fax machine.
- Mail2Fax Email-to-fax service enabling users to send faxes directly from their email client without additional software installation.
- Voice-/Faxbox Analog fax adapter service that lets existing fax machines work with VoIP technology through an ATA adapter, with a one-time CHF 10 installation fee and CHF 5 per month subscription.
- sipcall hosted pbx (partner program) Partner-exclusive hosted PBX solution enabling certified sipcall partners to offer professional cloud IP telephony to their end customers and earn recurring revenue from the hosted service.
- Backbone VoIP-Whitelabel Whitelabel VoIP solution by Backbone Solutions AG enabling partners to offer VoIP services under their own brand with customizable tariffs, Swiss phone numbers, billing, and IP backbone connectivity, without investing in their own infrastructure.
Quantifiable outcome
- Cost savings up to 60% compared to traditional telephony
- +3 more outcomes
Companies that use sipcall
Customer profileNamed customers7 records
Segments3 records
Ideal customer profiles2 records
sipcall technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
AI capability2 records
Feature6 records
sipcall partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- Backbone Solutions AGcoreParent company of sipcall brand. Backbone Solutions AG is the legal entity providing VoIP services under the sipcall brand. Located in Schindellegi, Switzerland.
- Microsoftcoresipcall offers direct Microsoft Teams telephony integration, connecting Teams users to the Swiss PSTN without requiring a separate SBC (Session Border Controller). Product is marketed as Microsoft Teams certified compatible.
- Certified sipcall PartnerscoreIT companies, telecom resellers, and system integrators certified to resell sipcall products, provide installation and support services, and offer hosted PBX solutions to their customers. Partners receive commissions, training, marketing support, and access to partner portal.
- Backbone VoIP-Whitelabel PartnersminorService providers offering VoIP services under their own brand using Backbone's infrastructure, without investing in their own systems. Includes billing, number inventory, and termination services.
- Spektra Netcom AGminorTestimonial partner citing sipcall as a valuable 3CX and Teams telephony partner with fast and competent support.
- Yoo AGminorTestimonial partner praising sipcall's flexible pricing model and channel limit policies favoring partners.
- iTrust AGminorTestimonial partner valuing sipcall's close personal support.
- DV Bern AGminorTestimonial partner feeling well-supported by sipcall services.
Scale indicators6 records
Recent moves7 records
Expansion highlights4 records
sipcall competitors and assessment
Company assessmentDirect peers
- Starface: German IP-PBX vendor targeting SMBs and partners; sipcall regularly attends Starface Kongress. Competes in the DACH-region IP-PBX market with hosted/on-prem telephony that overlaps sipcall's hosted PBX.
- iWay: Swiss broadband and VoIP provider offering SIP trunking and business telephony primarily to SMBs. Comparable to sipcall in Swiss-only focus and bundled connectivity/telephony offerings.
- Peoplefone: Swiss-headquartered VoIP and hosted PBX provider targeting SMBs and resellers with virtual telephony, SIP trunking, and number services. Closest direct competitor to sipcall in terms of Swiss market focus, product mix, and channel-driven GTM.
- 3CX: Global IP-PBX software vendor whose systems are commonly connected via sipcall's SIP-Trunk. Competes with sipcall's virtual PBX offering at the customer-premises-PBX layer and is both a partner and an indirect competitor.
Broad incumbents
- RingCentral: Global UCaaS leader providing cloud PBX, contact center, and Teams integration. Represents the global, well-capitalized competitor that sipcall's Teams telephony offering is positioned against.
- Sunrise: Swiss incumbent operator providing fixed-line, mobile, and business telephony/UCaaS services. Overlaps with sipcall in Swiss business telephony, particularly for SMB and SME customers.
- 8x8: Global UCaaS and CCaaS provider offering cloud telephony with Microsoft Teams integration. Comparable as an international UCaaS competitor pursuing Swiss enterprise customers through partner channels.
- Cisco Webex: Cisco's UCaaS suite (Webex Calling) competes in cloud telephony and Teams-adjacent collaboration. Represents a global incumbent with broader product portfolio that could expand into sipcall's territory.
- Swisscom: Largest Swiss incumbent telecom offering fixed-line, mobile, IP telephony, and Smart Business Connect UCaaS. Competes with sipcall across SMB and enterprise segments, leveraging broadband and mobile bundling.
Emerging players
- Zoom: Zoom Phone extends Zoom's collaboration platform into cloud telephony and is an emerging competitor in the SMB UCaaS space with growing international presence.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
sipcall social profiles
Digital presencesipcall compliance and trust
Trust signalCompliance3 records
sipcall financial estimates
Financial estimateRevenue estimate
Valuation estimate
sipcall leadership team
Management profileNumber of profiles
Profiles4 records
sipcall funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
sipcall M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about sipcall
What does sipcall do?
sipcall sells cloud-based business telephony services to Swiss companies, providing a virtual PBX (cloud telephone system), SIP trunks (VoIP connectivity for existing phone systems), and direct Microsoft Teams telephony integration without requiring an SBC. The portfolio is supplemented with cross-platform softphone apps, fax-over-IP, internet connectivity, and number portability. Customers subscribe monthly per phone number, SIP trunk, or Microsoft Teams user.
Is sipcall a public or private company?
sipcall is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was sipcall founded?
sipcall was founded in 2005. It employs 11 to 50 people.
Where is sipcall based?
sipcall is headquartered in Feusisberg, Switzerland, in the Europe region.
How does sipcall make money?
Five revenue lines are on record. Subscription Services are the primary driver. The others are usage-based Call Charges, service Numbers, hardware and Setup Fees and partner Program Revenue.
Who are sipcall's main competitors?
Direct peers on record are Starface, iWay, Peoplefone and 3CX. Broad incumbents are RingCentral, Sunrise, 8x8, Cisco Webex and Swisscom. Zoom is listed as an emerging player.
Does sipcall have an API?
No public API is recorded for sipcall.
What industry is sipcall in?
sipcall's product category is Cloud Business Telephony / VoIP. Its primary akta.pro industry code is HDAIAHAB, Cloud PBX & Hosted Telephony. Its NAICS code is 51711 and its SIC code is 4813.