Every European SIP trunking and virtual number provider reviewed
Bristol, United Kingdom
Founded 1996
No trunk prices on the hosted trunk page; a separate rates section exists
Demo on request
Best for: Teams that want to manage trunks through an API on a carrier-owned network
Simwood sells hosted SIP trunks, numbers and a hosted PBX from Bristol, on a network that the company says it owns and operates end to end. Each trunk can be adjusted through a portal or an API for ring timeouts, time-of-day routing, failover and forwarding. That control model is what puts Simwood nearest to API-first US carriers among the European options.
The company behind the service is Simwood eSMS Limited, registered in England under number 03379831, and it describes itself as a software-defined carrier. The hosted trunk page does not list prices or channel limits, the group footer also shows a Tennessee address and a Tbilisi office, and data location is not stated, so the order form should name the UK company as the contracting party.
What Simwood does well
- Network that the carrier says it owns and runs
- Trunks controlled through a portal and an API
- Ring timeouts, time-of-day routing and failover are part of the trunk
- Hosted PBX from the same supplier
- ISO 27001 and ISO 9001 marks displayed on its site
Where Simwood falls short
- No prices on the hosted trunk page
- A US address and a Georgian office appear in the group footer
- Data location not stated on the pages checked
- Documentation depth not assessed beyond public pages
Standout feature. Simwood is the European trunk supplier that pairs portal and API control with a network the carrier says it owns.
Dublin, Ireland
On 31 Oct 2026 the pricing page showed US local termination from $0.004 a minute, international from $0.0046, and US numbers from $1.20 a month (US dollars)
Demo on request
Best for: Resellers, platforms and companies that want published rates and many number countries
DIDWW sells SIP trunking, virtual numbers and business SMS, and its terms name DIDWW Ireland Limited at 25 North Wall Quay in Dublin as the operator. The pricing page shows a per-minute rate for a chosen destination; on 31 October 2026 it listed US local termination from $0.004 and international from $0.0046, with US numbers from $1.20 a month.
The catalogue also covers toll-free, shared cost and universal international freephone numbers, fax over SIP, a cloud PBX called phone.systems and a REST API. Founding year is not stated on the pages checked, prices are in US dollars, the privacy notice names the USA, Singapore and Germany as processing locations, and the terms exclude emergency calls unless agreed in writing.
What DIDWW does well
- Irish contracting company named in the terms
- Rate by destination shown online, with a price list to download
- Free number porting stated
- Many number types, including toll-free and shared cost
- Cloud PBX and REST API from the same company
Where DIDWW falls short
- Billed in US dollars
- Emergency calls excluded unless agreed in writing
- Data may be processed in the USA and Singapore
- Less local-language support than the German providers
Standout feature. DIDWW shows the per-minute rate for a selected country on its pricing page, which few European carriers do.
Berlin, Germany
Trunk plans shown from €1.95 a month for two channels after a six-month free period; whether VAT is included was not stated in the text seen
Not stated for trunks
Best for: German-speaking offices that want channel plans with no minimum term
easybell is a Berlin provider whose SIP trunk plans run from two to 1,000 channels with no minimum term. Its trunk page shows plans from €1.95 a month for two channels after a six-month free period, and a basic cloud PBX comes with the plans. The model is a fixed channel count, which makes the monthly cost easy to forecast for an office with stable call volumes.
The contracting company is easybell GmbH in Berlin, and since October 2022 it has belonged to Dstny, a Belgian group. Easybell sells a Teams connector as well. Whether the trunk prices include VAT was not stated in the text seen, the founding year was not checked, and no developer API was found on the trunk page.
What easybell does well
- Plans from two to 1,000 channels
- No minimum term
- Basic cloud PBX included
- Teams connector available
- German company in Berlin
Where easybell falls short
- VAT treatment of trunk prices not stated
- Owned by Dstny, a Belgian group
- No developer API found on the trunk page
- Per-minute rates by destination not shown on the page checked
Standout feature. easybell is the only supplier on this list whose trunk plans start at two channels with no minimum term.
Düsseldorf, Germany
API add-on: free S tier with 100 webhook calls, then 4.9 cents per call; M plan €4.95 a month at 2.9 cents per call; L plan €29.95 a month at 1.9 cents per call; XL on request; SMS 9.9 cents net per 160 characters; an existing sipgate account is required
Demo on request
Best for: German developers who already use sipgate telephony and want call and SMS webhooks
sipgate.io is the developer add-on to the telephony of sipgate GmbH in Düsseldorf, offering a REST API with webhooks for call control, SMS and fax, plus a Push API that delivers live call events. The trunking side of sipgate connects Asterisk, 3CX and Starface systems to the German network, with per-minute billing and a flexible channel count.
Prices for the add-on are published down to the single call: the free S tier includes 100 webhook calls, M costs €4.95 a month at 2.9 cents per call and L costs €29.95 a month at 1.9 cents, while SMS costs 9.9 cents net per 160 characters. The add-on needs an existing sipgate account and has no WhatsApp or RCS, so it fits teams already on sipgate.
What sipgate.io does well
- Per-call and per-SMS prices printed in full
- Free tier with 100 webhook calls
- Push API for live call events
- German company under German data protection law
- Webhooks keep call logic simple to script
Where sipgate.io falls short
- Needs an existing sipgate telephony account
- No WhatsApp, RCS or omnichannel messaging
- Voice and SMS only, no wider platform
- Does not suit a new application with no sipgate number
Standout feature. sipgate.io prices every webhook call and every SMS separately and in euro, so the monthly figure can be added up in advance.
Bath, United Kingdom
Founded 1998
Wave phone system per user and month: Wave 100 from GBP 7.90, Wave 1000 from GBP 11.10, Wave 3000 from GBP 15.90
Demo on request
Best for: UK businesses that run 3CX or want a phone system with included minutes
Gradwell Communications Limited, registered in England and Wales with an office in Bath, states that it has delivered cloud technology since 1998. Its trunk card lists 3CX preferred status and Teams Direct Routing, and the company says it is the largest 3CX partner in EMEA, a claim made on its own site. The wider range includes business mobile, broadband and leased lines.
The published prices belong to the Wave phone system: Wave 100 from GBP 7.90 per user a month with 100 minutes, Wave 1000 from GBP 11.10 and Wave 3000 from GBP 15.90. The company is British, so it sits outside the EU, the checked policy names some processors outside the UK and EEA, and the trunk-only price needs a quote.
What Gradwell does well
- Per-user prices published for the phone system
- Minutes included in each Wave plan
- Teams add-on and Teams Direct Routing
- In business since 1998
- Broad range: mobile, broadband, leased lines
Where Gradwell falls short
- British jurisdiction, outside the EU
- Some processors outside the UK and EEA
- Hosting location not stated
- Included minutes are capped per plan
Standout feature. Gradwell is the supplier on this list that combines a 3CX partner claim with Teams Direct Routing.
Zurich, Switzerland
Not seen on the pages checked
Not stated
Best for: Companies that buy through an installer and want a local national subsidiary
peoplefone is a Zurich-founded VoIP group that sells SIP trunks, a virtual PBX and landline numbers in more than 60 countries, organised through seven national subsidiaries. A customer therefore contracts with the subsidiary of their own country. The group describes an installer partner network, which means many customers are served by the integrator who set up the PBX.
The group is described as founder-owned, and it lists a Microsoft Teams product. Switzerland is outside the EU, trunk prices were not seen on the pages checked, and the structure suits buyers with an IT partner more than a developer who signs up alone. The legal entity per country should be read from the imprint before ordering.
What peoplefone does well
- Numbers in more than 60 countries
- Seven national subsidiaries
- Installer partner network
- Teams product listed
- Founder-owned group
Where peoplefone falls short
- Swiss base, outside the EU
- Prices not seen on the pages checked
- Sold mainly through partners
- Contracting entity depends on the country
Standout feature. peoplefone is the supplier here that sells through seven national subsidiaries and an installer network.
Cologne, Germany
Cloud PBX per user and month on a 24-month term: Essentials from EUR 6.90, Business from EUR 9.90, Enterprise from EUR 14.90 (EUR 8.90, 11.90 and 16.90 on a one-month term)
30 days, no payment details
Best for: German offices that want to add or remove trunk channels online
Placetel is a service of Gamma Placetel GmbH in Cologne, which states it is supervised by the Bundesnetzagentur. The trunk offer lets a customer add or remove channels on demand through an online order portal, with a cloud PBX as the natural upgrade. Placetel belongs to the UK Gamma group, the same group that owns Gamma Telecom.
The phone system starts at EUR 6.90 per user a month for Essentials on a 24-month term, with a 30-day trial that needs no payment details, plus integrations with Teams, DATEV and CRM systems. Extras such as TAPI at EUR 5.90 are billed on top, the lowest price needs two years, and the pages checked do not state where data is hosted.
What Placetel does well
- Entry price from EUR 6.90 per user
- 30-day trial without payment details
- Integrations with Teams, DATEV and CRM systems
- German all-net flat on higher plans
- Call charges from 1 cent a minute
Where Placetel falls short
- Hosting location not stated
- Lowest price needs a 24-month term
- Extras billed separately, for example TAPI at EUR 5.90
- Minimum of 2 users
Standout feature. Placetel lets a customer change the number of trunk channels online while contracting with a regulated German company.
Newbury, United Kingdom
Quote through sales or a partner
Demo on request
Best for: UK organisations with an on-premise PBX, several sites and Teams or Genesys needs
Gamma Telecom Limited is incorporated in England and Wales, with its principal place of business in Newbury, and sells SIP Trunks as a replacement for ISDN. A site connects over broadband, Ethernet or a private access circuit, and the page states 99.99% availability along with rerouting between two sites if one fails. The PBX can sit on site, in managed colocation, or both.
Gamma lists Direct Routing for Microsoft Teams and a Genesys BYOC Cloud option, and says it serves one in three UK businesses with cloud voice, a figure from its own page. No prices are published, buyers go through sales or a partner, coverage is centred on the United Kingdom, and data location was not stated on the pages checked.
What Gamma Telecom does well
- UK operator with its own network
- Private access circuit as a connection option
- Direct Routing for Microsoft Teams
- Genesys BYOC Cloud offered
- Managed colocation available
Where Gamma Telecom falls short
- No published prices
- Sold through sales and partners
- Coverage centred on the UK
- Data location not stated on the pages checked
Standout feature. Gamma Telecom is the one supplier here that offers trunks over a private access circuit as a standard connection option.
Amsterdam, Netherlands
Trunk prices not seen on the pages checked
Not stated for trunks
Best for: Developers who want a Dutch API company and strict trunk access controls
Bird publishes a developer-first SIP trunking page that lists TLS signalling on port 5061, IP allowlists, country-level dialling limits and verified caller IDs. Each of these limits who may use a trunk or where it can call, which suits teams that want to close off toll-fraud routes by default.
For customers outside the US, Bird's terms name Bird B.V. in Amsterdam, and a US entity contracts with US email customers, so the voice order form should say which company signs. Trunk prices and hosting location were not seen on the pages checked, and the company sells email, SMS and WhatsApp as well as voice.
What Bird does well
- Dutch entity named for customers outside the US
- IP allowlist and TLS signalling on port 5061
- Country-level dialling limits
- Verified caller IDs
- Email, SMS and WhatsApp from the same company
Where Bird falls short
- A US entity exists for US customers
- Trunk prices not seen
- Hosting location not stated on the pages checked
- Built for developers rather than office phone systems
Standout feature. Bird documents country-level dialling limits on its trunks, a fraud control most other suppliers here do not mention.
London, United Kingdom
Contact form and datasheets, no prices shown
Demo on request
Best for: Multinational enterprises consolidating voice suppliers
Colt Technology Services Group Limited, registered number 03232904 and based at Colt House in London, sells SIP Trunking to enterprises that want one supplier across countries. Its product page names Genesys Cloud, Cisco Webex, Talkdesk, Twilio Flex, Avaya Experience Platform and NICE CXone as interoperable contact-centre systems, and Microsoft Teams and Zoom as compatible UC platforms.
The company describes SRTP and TLS voice security, geo-redundant failover and a 99.999% uptime figure, and says it serves more than 3,500 customers in 29 countries, all self-reported. SIP on Demand supports online porting and extra numbers. No prices are shown, and which Colt entity signs per country was not verified; the website terms name the UK parent only.
What Colt does well
- UK parent named in the website terms
- Named list of tested contact-centre platforms
- SRTP and TLS voice security
- Porting and local numbering across several countries
- Disaster recovery upgrade
Where Colt falls short
- No published prices
- Enterprise sales process
- Contracting entity per country not verified
- Wholesale trunking is a separate product
Standout feature. Colt is the supplier here that names the specific contact-centre platforms its trunks have been tested against.
Vodnjan, Croatia
Founded 2006
Quoted per customer
Demo on request
Best for: Enterprises that need voice alongside global messaging
Infobip is headquartered in Vodnjan, Croatia, and was founded in 2006 by Silvio Kutic, Roberto Kutic and Izabel Jelenic. Its SIP trunks forward numbers from many countries to a customer PBX, and sit inside a platform that covers SMS, voice, email, WhatsApp, RCS, Viber and more than 30 channels in total.
According to the vendor, the company serves over 10,000 enterprises in more than 190 countries and has over 800 direct operator connections, and the tool page notes Gartner and IDC recognition. Pricing is quoted per customer, so a trunk-only buyer meets a platform sales process, and the breadth of the product exceeds what an office PBX needs.
What Infobip does well
- EU-headquartered company in Croatia
- Voice, SMS, WhatsApp and RCS under one account
- Numbers from many countries forwarded to a PBX
- More than 800 direct operator connections, per the vendor
- Also offers a contact-centre product and chatbots
Where Infobip falls short
- Price only on request
- Platform scope is larger than a trunk-only buyer needs
- Sales-led onboarding
- No published trunk rates to compare
Standout feature. Infobip is the only supplier here that places SIP trunks inside a messaging platform with more than 30 channels.
