PSTN replacement for your business

Replace traditional telephony with a VoIP-based network that is reliable and truly cost-effective

Phone number

Why do businesses choose a PSTN replacement solution from DIDWW?

  • Cost-efficiency

    A truly cost saving and innovative solution to replace traditional telephony with hardware-free VoIP SIP Trunks.

  • Scalability

    Effortless business expansion from one to thousands of phone numbers and numerous simultaneous calls.

  • No hardware required

    A fully cloud-based solution with low maintenance costs and no on-site hardware.

  • Local Dialing

    Truly local presence with guaranteed local CLI, ensuring access to toll-free, short-code and emergency services.

  • Emergency Calling

    DID numbers routed to the relevant PSAP for safety and compliance.

  • Ease of use

    Advanced, yet easy to manage VoIP solutions with rapid configuration updates.

  • Compliant voice and SMS

    Hassle-free regulatory compliance globally for all services.

  • Reliability

    99,998% network uptime with highly secure and fully geo-redundant infrastructure and live in-house monitoring 24/7/365.

Cost-efficiency

A truly cost saving and innovative solution to replace traditional telephony with hardware-free VoIP SIP Trunks.

  • Cost-efficiency

    A truly cost saving and innovative solution to replace traditional telephony with hardware-free VoIP SIP Trunks.

  • Scalability

    Effortless business expansion from one to thousands of phone numbers and numerous simultaneous calls.

  • No hardware required

    A fully cloud-based solution with low maintenance costs and no on-site hardware.

  • Local Dialing

    Truly local presence with guaranteed local CLI, ensuring access to toll-free, short-code and emergency services.

  • Emergency Calling

    DID numbers routed to the relevant PSAP for safety and compliance.

  • Ease of use

    Advanced, yet easy to manage VoIP solutions with rapid configuration updates.

  • Compliant voice and SMS

    Hassle-free regulatory compliance globally for all services.

  • Reliability

    99,998% network uptime with highly secure and fully geo-redundant infrastructure and live in-house monitoring 24/7/365.

Cost-efficiency

A truly cost saving and innovative solution to replace traditional telephony with hardware-free VoIP SIP Trunks.

DIDWW VoIP building blocks used for PSTN replacement

  • Local Phone Numbers

    Local presence in 61 area codes with geographical DIDs.

  • National Phone Numbers

    Complete freedom for businesses in multi-regional markets across the globe.

  • Toll Free Phone Numbers

    An extensive worldwide coverage of Toll Free Numbers for global businesses with local customers.

Local Phone Numbers

Local presence in 61 area codes with geographical DIDs.

  • Universal International Freephone Numbers

    A single Toll Free Number for a truly global brand presence and reachability.

Universal International Freephone Numbers

A single Toll Free Number for a truly global brand presence and reachability.

  • Mobile Phone Numbers

    A wide selection of Voice and SMS-enabled phone numbers for cost-effective communications.

Mobile Phone Numbers

A wide selection of Voice and SMS-enabled phone numbers for cost-effective communications.

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  • Shared Cost Numbers

    Effortless business phone number setup with country-wide accessibility.

  • Two-way SIP Trunking

    A powerful inbound and outbound SIP Trunking solution with rock-solid reliability, excellent audio quality and flexible trunk configurations.

  • Flexible Capacity options

    Flat-rate, pay-per-minute and hybrid voice channel Capacity for maximum availability and cost-efficiency.

  • Business phone.systems™

    Fully-scalable, simple to use cloud-based PBX with a unique interface and an extensive feature set.

  • Emergency Dialing

    DID Numbers routed to the relevant PSAP for safety and compliance.

  • Cloud Fax services

    Fax messages to selected numbers or email delivered via T.38 or G.711u protocols.

Shared Cost Numbers

Effortless business phone number setup with country-wide accessibility.

  • Local Phone Numbers

    Local presence in 61 area codes with geographical DIDs.

  • National Phone Numbers

    Complete freedom for businesses in multi-regional markets across the globe.

  • Toll Free Phone Numbers

    An extensive worldwide coverage of Toll Free Numbers for global businesses with local customers.

  • Universal International Freephone Numbers

    A single Toll Free Number for a truly global brand presence and reachability.

  • Mobile Phone Numbers

    A wide selection of Voice and SMS-enabled phone numbers for cost-effective communications.

  • Shared Cost Numbers

    Effortless business phone number setup with country-wide accessibility.

  • Two-way SIP Trunking

    A powerful inbound and outbound SIP Trunking solution with rock-solid reliability, excellent audio quality and flexible trunk configurations.

  • Flexible Capacity options

    Flat-rate, pay-per-minute and hybrid voice channel Capacity for maximum availability and cost-efficiency.

  • Business phone.systems™

    Fully-scalable, simple to use cloud-based PBX with a unique interface and an extensive feature set.

  • Emergency Dialing

    DID Numbers routed to the relevant PSAP for safety and compliance.

  • Cloud Fax services

    Fax messages to selected numbers or email delivered via T.38 or G.711u protocols.

Local Phone Numbers

Local presence in 61 area codes with geographical DIDs.

Request a quote

Get an offer tailored for
your business

Why do customers choose DIDWW?

The VoIP platform for telecommunication and business professionals

Compliant two-way SIP Trunking, everywhere

Compliant two-way SIP Trunking, everywhere

Full global compliance in 80 countries and 5151 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.

Trusted by professionals

  • Nat Rudy

    C3ntro Telecom

    Carrier Interconnection Manager

    C3ntro Telecom

    “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.”“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

    Air Serbia

    “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.”“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

    Nectar Desk Inc.

    “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.”“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 Rudy

C3ntro Telecom

Carrier Interconnection Manager

C3ntro Telecom

“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.”“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.”

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Create or expand your cloud telecommunications

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Get more from DIDWW

The platform for telecommunication professionals

Extensive DID coverage

All types:

  • Local Numbers
  • National Numbers
  • Toll Free Numbers
  • UIFN
  • Mobile Numbers
  • Shared Cost Numbers
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Extensive DID coverage

All types:

  • Local Numbers
  • National Numbers
  • Toll Free Numbers
  • UIFN
  • Mobile Numbers
  • Shared Cost Numbers

Telecom services

Key services:

  • Two-way SIP Trunking
  • Two-way SMS
  • Flexible Capacity options
  • Emergency Calling
  • Global Phone Number Porting
  • Voice Forwarding and SMS Delivery
  • Cloud Fax services

Professional tools

Key solutions:

  • API
  • Self-service user portal
  • Number porting tool
  • Number selection tool
  • Business phone.systems™

Solutions for operators

Key advantages:

  • API for automation
  • Reliability
  • Compliance
  • Wholesale pricing
  • Porting
  • Scalability
  • Quality

Enterprise communications

All industries:

  • Health
  • Finance
  • Logistics
  • Aviation
  • Retail
  • Tourism
  • Your business

Stay updated

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