Fully-compliant Universal International Freephone Numbers
A single Toll Free number for global reachability

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What is a Universal International Freephone Number (UIFN)?
A Universal International Freephone Number (UIFN) is a single toll free number that works across multiple countries, providing businesses with a global reach and enabling seamless customer communications around the world. As an integral part of the Universal International Freephone Service initiative, UIFN numbers eliminate the need for region-specific, toll free numbers, offering a cost-free connection for customers. This centralized solution improves customer satisfaction and supports a unified brand presence across international markets.
Buy nowOptimize your business operations with international toll free numbers
Global Accessibility
Use a single, international toll free number to let customers worldwide reach your business easily.
Cost Efficiency
Eliminate the need to manage multiple toll free numbers by switching to a single UIFN and reducing operational expenses.
Customer Experience
Provide free-of-charge calls for customers using international toll free phone numbers to build trust and satisfaction across global markets.
Regulatory Compliance
Ensure compliance and reliability globally with these ITU-backed international phone numbers.
Brand Consistency
Strengthen your brand image with a unified, professional presence using Universal International Freephone Numbers.
Centralized Support
Simplify operations and enhance services with worldwide toll free numbers, offering cohesive and efficient customer support.
Scalability
Enable seamless business growth and market expansion by easily adding UIFNs as and when required.
Unlock more benefits with DIDWW as your UIFN provider
At DIDWW, we go beyond expectations to deliver a comprehensive solution for your Universal International Freephone Numbers. We provide businesses with a consistent, professional presence across multiple countries, enhancing customer trust and delivering a superior user experience.
Extensive reachability
A single UIFN is reachable from 60 countries, with coverage being continually expanded.
Cost saving
Highly cost-efficient Toll Free solution for international businesses.
Quick setup and easy management
Effortless and swift number acquisition and service management.
Premium call quality
Universal International Freephone Numbers combined with premium service quality and reliability, and full regulatory compliance.
Seamless porting
Wide Porting coverage for a smooth migration of your phone numbers to DIDWW.
Easy integration
Effortless interconnection with your existing cloud PBX or our phone.systems™ business communication solution.
Easy integration
Effortless interconnection with your existing cloud PBX or our phone.systems™ business communication solution.
Extensive reachability
A single UIFN is reachable from 60 countries, with coverage being continually expanded.
Cost saving
Highly cost-efficient Toll Free solution for international businesses.
Quick setup and easy management
Effortless and swift number acquisition and service management.
Premium call quality
Universal International Freephone Numbers combined with premium service quality and reliability, and full regulatory compliance.
Seamless porting
Wide Porting coverage for a smooth migration of your phone numbers to DIDWW.
Easy integration
Effortless interconnection with your existing cloud PBX or our phone.systems™ business communication solution.
Extensive reachability
A single UIFN is reachable from 60 countries, with coverage being continually expanded.
Cost saving
Highly cost-efficient Toll Free solution for international businesses.
Quick setup and easy management
Effortless and swift number acquisition and service management.
Premium call quality
Universal International Freephone Numbers combined with premium service quality and reliability, and full regulatory compliance.
Seamless porting
Wide Porting coverage for a smooth migration of your phone numbers to DIDWW.
Easy integration
Effortless interconnection with your existing cloud PBX or our phone.systems™ business communication solution.
Download the DIDWW price list
Tiered wholesale prices available
Frequently Asked Questions
VoIP use cases for your business
Learn what you can build with DIDWW cloud
communications
Why do customers choose DIDWW?
The VoIP platform for telecommunication and business professionals
Compliant two-way SIP Trunking, everywhere
Full global compliance in 94 countries and 5353 areas. Readily available Landline, Mobile and Toll Free Phone Numbers and two-way local SIP Trunking. Licensed or directly partnered with a local carrier in every country.
Designed for carriers, excellent for enterprises
Built for quality, performance, security and privacy at every level. Network uptime - 99,998%, strategically placed mega POPs, direct peering & optimised routing.
Profitable business outcomes
Experience DIDWW flexibility from custom pricing to free professional customer service to simplify your business decisions.
Powerful, yet simple-to-use self-service portal
Choose the DIDWW user panel for full control of your telecommunication services. Statistics, monitoring, number search, porting and provisioning.
Time saving business processes automation
Include the extensive range of DIDWW core services within your own business processes with the REST API.
Trusted by professionals
- Nat Rudy
C3ntro Telecom
Carrier Interconnection Manager
“Always with the best disposition to serve us, DIDWW has helped us in fulfilling our customer’s needs, when it comes to provide them with the numbering solutions, when most of the time the requests get to us as urgent ones. Apart from everything else, it’s also fun and easy to work with DIDWW.”
- Dragan Gajovic
Air Serbia
IT Service Manager
“We had a very fast integration with our IP voice system and their accessible and open procedures helped us reach our goals. During our contact center transition from an in-house solution to outsource solution, there weren’t any outages. The onboarding process was simple, fast and with substantial assistance.”
- Andriy Azarov
Nectar Desk Inc.
CEO
“Virtual numbers and Phone Systems are essential parts of our offering, therefore DIDWW is one of the key components in our infrastructure. They have great support and high quality service. We became a client of DIDWW when we were very small, but still were treated in a proper way and were able to discuss business conditions, which helped our growth.”
Andriy AzarovNectar Desk Inc.
CEO

Nectar Desk Inc.
CEO
“Virtual numbers and Phone Systems are essential parts of our offering, therefore DIDWW is one of the key components in our infrastructure. They have great support and high quality service. We became a client of DIDWW when we were very small, but still were treated in a proper way and were able to discuss business conditions, which helped our growth.”
Nat RudyC3ntro Telecom
Carrier Interconnection Manager

C3ntro Telecom
Carrier Interconnection Manager
“Always with the best disposition to serve us, DIDWW has helped us in fulfilling our customer’s needs, when it comes to provide them with the numbering solutions, when most of the time the requests get to us as urgent ones. Apart from everything else, it’s also fun and easy to work with DIDWW.”
Dragan GajovicAir Serbia
IT Service Manager

Air Serbia
IT Service Manager
“We had a very fast integration with our IP voice system and their accessible and open procedures helped us reach our goals. During our contact center transition from an in-house solution to outsource solution, there weren’t any outages. The onboarding process was simple, fast and with substantial assistance.”
Andriy AzarovNectar Desk Inc.
CEO

Nectar Desk Inc.
CEO
“Virtual numbers and Phone Systems are essential parts of our offering, therefore DIDWW is one of the key components in our infrastructure. They have great support and high quality service. We became a client of DIDWW when we were very small, but still were treated in a proper way and were able to discuss business conditions, which helped our growth.”
Nat RudyC3ntro Telecom
Carrier Interconnection Manager

C3ntro Telecom
Carrier Interconnection Manager
“Always with the best disposition to serve us, DIDWW has helped us in fulfilling our customer’s needs, when it comes to provide them with the numbering solutions, when most of the time the requests get to us as urgent ones. Apart from everything else, it’s also fun and easy to work with DIDWW.”
Dragan GajovicAir Serbia
IT Service Manager

Air Serbia
IT Service Manager
“We had a very fast integration with our IP voice system and their accessible and open procedures helped us reach our goals. During our contact center transition from an in-house solution to outsource solution, there weren’t any outages. The onboarding process was simple, fast and with substantial assistance.”
Andriy AzarovNectar Desk Inc.
CEO

Nectar Desk Inc.
CEO
“Virtual numbers and Phone Systems are essential parts of our offering, therefore DIDWW is one of the key components in our infrastructure. They have great support and high quality service. We became a client of DIDWW when we were very small, but still were treated in a proper way and were able to discuss business conditions, which helped our growth.”
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