Discover how our products can revolutionize the way you communicate and collaborate.


Explore our advanced voice solutions designed to optimize your communication workflows.

Diverse range of DID number solutions designed to enhance your communication capabilities.

Experience unparalleled communication efficiency with our advanced SIP Trunking Solutions.

Cutting-edge technology to proactively detect and neutralize spam flags on your DID Numbers.


Wherever your audience is, our platform ensures seamless messaging across diverse channels.

Build customer journeys by fostering interactive conversations, all within the framework of your app. 

Connect with your audience in a simple and effective way through our cutting-edge SMS platform. 


Harness the power of IDT as your chosen carrier while leveraging your platform’s advanced features and services.

Integrate Twilio with our robust carrier routing platform to achieve unparalleled Voice termination system.

Experience reliable and high-quality communication services while leveraging the advanced capabilities of Genesys. 

Integrate IDT with the collaborative strength of MS Teams, unlocking efficient and feature-rich communication. 

Experience the power of our carrier network seamlessly connected to Plivo through our cutting-edge BYOC solution. 


Experience the power of our online voice tools, designed to simplify communication management. 

Ensure the authenticity and integrity of outbound calls with our STIR/SHAKEN Verification Check tool. 

User-friendly tool to verify the reputation of your business number, ensuring that it remains trusted. 

Compare and gain insights into outbound call expenses, optimize budget, and make informed decisions. 

Easily estimate and compare the costs associated with different DID numbers providers. 

Compare inbound VoIP rates among top CPaaS providers and optimize your inbound call costs. 

Generate custom SMS templates. 


Empower yourself with the resources you need to thrive in the dynamic landscape of communication.

Articles covering a wide range of topics.

Get answers to common queries.

Find instructions to make the most of our products.

Discover telecom insights and trends.

Find definitions of popular telecom terms.

Explore how our solutions have helped businesses.

Latest telecom trends, innovations, and market insights.


A global telecom partner built to meet your needs. 

Discover the story behind our commitment to delivering innovative solutions to connect people and businesses worldwide. 

Learn about our robust network infrastructure that spans across the globe, ensuring reliable and secure connectivity. 

Got a question, feedback, or need assistance? Our dedicated team is here to help!

Find partners or sign up for partnership programs.

Learn / Blog

What is IWS?

|  4 min
What is IWS?
In this article

VoIP Wholesale Carriers play a vital role in the telecoms industry. However, these providers face a number of issues in the rapidly changing market and new innovations such as IWS can help. 

What do Wholesale VoIP Providers do?

Wholesale VoIP providers manage networks and offer white routes, termination and origination services to carriers and providers. Origination allows customers to access to numbers worldwide, while wholesale termination gives access to an extensive voice network. These businesses support carriers, other VoIP service providers, and other resellers such as calling card companies, call back services, wireless networks, and call shops. 

What challenges are they facing?

Wholesale VoIP providers face a number of challenges as they strive to be competitive and maintain their profit levels. These issues include: 

– Route rates

Because routes and associated rates change constantly, wholesale VoIP providers need to be able to monitor and keep on top of the updated rates. Otherwise they may end up paying more than the going rate. 

– Route Quality

For wholesale VoIP businesses, the route is probably the most important component. Moreover, the quality of the VoIP routes arguably matters more than anything. If the quality is poor then customers will leave and profits will suffer. 

– Poor negotiation

Because the majority of VoIP service providers carry out their business online, it can be difficult to negotiate properly. This can result in problems and misunderstandings and may mean the service clients expect is not the one they receive, or the price they pay is more than they anticipated. 

– Payment delays

Arguably the most damaging issue faced by wholesale VoIP providers is the delay with payments. This delay occurs because VoIP service providers follow a standard billing cycle, with the result that they have to wait for the end of the cycle to invoice and then wait even longer to receive payment. This impacts on a business’ cashflow and can cause major problems. 

What is IWS?

IWS stands for Instant Wholesale Service. It is a relatively new concept and essentially an advanced form of wholesale VoIP. It is highly beneficial to smaller businesses who wish to get started in the wholesale VoIP sphere. 

How can IWS help Wholesale VoIP Providers?

Because IWS is instant, there are no delays in payments. This prevents disruptions, improves cashflow and ensures that VoIP businesses can function smoothly. The payment methods available are also safe and secure and businesses can request any payment amount at any time via an automated portal. 

Other benefits of IWS include:

  • Bilateral business opportunities
  • Account customisation
  • No additional paperwork,
  • Routes for voice
  • Mobile top-up options
  • Safe and secure payment options
  • 24/7 customer support

Choosing a VoIP wholesale carrier

The right VoIP system can help a business to be more responsive to customer demands. If your business is looking to select a VoIP provider to help transform your telecommunications, there are a number of things to consider. 


While cost is understandably a major factor in choosing any type of provider, the cheapest is very rarely the best option in terms of value for money. It is better to spend a little more for a service that is reliable and can grow and expand with your business. 

Customer service

The level of customer service on offer is a critical factor and helps your business deal with changing communication needs. Smaller providers may be able to offer a more personalised service with a dedicated account manager. 


Larger providers are likely to have access to and be able to afford more up-to-date technology and equipment than smaller firms. It is down to you as to how importance you place on this. 


Experienced VoIP providers such as IDT have a large, modern, and well-developed global infrastructure that enables them to offer extremely reliable and efficient service. 

Adaptability/ease of expansion

The ability to scale up or down easily is something that you should seek in a provider. For example, the ability to easily add/remove dedicated numbers when employees start or leave is something you should look for. As is being able to add a group of new numbers together if you were to perhaps open up a new office. The system should be flexible enough to be able to adapt to your requirements and deal with both expected and unexpected changes in your circumstances. 


In deciding on a provider, you should check which features are available – which are included as standard and which you will have to pay extra for. 

Ultimately, in selecting a VoIP provider, it is vital to undertake detailed due diligence and to check that they really can supply the service you need. 

Share this article

Leave a Reply

Your email address will not be published. Required fields are marked *


Meet our wholesale voice routing

Fulfill all your voice calling needs with our category leading wholesale A-Z Voice Termination.
Try IDT Express for a $25 Credit

Get $25 Free Trial Credit

Get IDT Express articles in your inbox

The best source of information in the telecom industry. Join us.

[contact-form-7 id="2051" title="Contact form 1"]

Most Popular

|  7 min
Introduction to Toll-Free Forwarding In today’s fast-paced business landscape where...
|  7 min
Introduction to Caller ID Reputation Caller ID reputation is a...
|  6 min
The European Union’s General Data Protection Regulation (GDPR) has permanently...