Your VoIP Competitors Will be Like … Look at You, Wow!, a wholesale DID number service since 1999 in beta and since 2005 full, trusted delivery to the web, offers communications companies to buy and sell DID phone numbers of …
140 countries
with Fast Activation
and Low Monthly rates.
such as …
and other communications services by the world’s most CREATIVE ENTREPRENEURS, OUR DIDX MEMBERS!
You have choices which is a good thing.
DIDX provides you with 2 FREE NUMBERS to test compatibility and interconnection with your switch.
Be even better than Whatsapp and Facebook VoIP business. Enable your customers to have a local presence via DID numbers of 140 nations you sell to them.
ALL BUYING AND SELLING RUNS ON YOUR COMPANY WEBSITE WITH DIDX working quietly in the background, assisting you to become an industry success, provisioning the phone numbers on your server over SIP.
Our API and web service empower you to integrate the entire inventory of DID (direct inward dialing) numbers on your website. You will be able to make available choices for your users of millions of phone numbers.
Your business will gain an excellent reputation as fast growing with increased revenue, more satisfied
customers and a global presence.
Sellers of DID numbers on the DIDX platform have a ready wholesale buying audience
of over 30,000 members.
Get started today at Your company deserves to be a winner!

How to Be a LinkedIn All Star

Be a LinkedIN All Star by DIDX DID numbers business.LinkedIn has a reputation for efficient use of social media to develop business. In general, people do not fill up their timelines with fluff. Most are genuine business invitations, advice, demos and discussions. After studying 1000s of of our customers and vendors’ LinkedIn profiles, we share some of our own tips.

  1. Post a professional picture that reflects you today.
  2. When you meet anyone in professional arenas, sure…trade business cards but also…immediately add each other on LinkedIn. It is very likely that you will lose the business card.
  3. Connect with as many businesspeople as you can. The more people you are connected with, the more likely you will gain real leads and develop new, exciting partnerships.
  4. Be sure to use the “Share an Update” feature to note that you want to enable a certain kind of prospect that has certain types of problems by a specific date. I.e., we are look forward to meet with communications service provider and vendor companies that want to in expand their business to USA and 139 other nations.
  5. Give and ask for at least one LinkedIn recommendation per week from clients, vendors and business friends who know your impressive accomplishments, attitude, and value. Remember that recommendations are more specific and are more influential than simple LinkedIn endorsements.
  6. Write one article per month that is meaningful and inspiring to your LinkedIn community.
  7. Add one video per month that is meaningful and ends with an authentic call to action.
  8. Add your Power Point and Slide Share presentations that you deliver at events. Make sure their focus is on the visual as in images, not just a bunch of text.

We wish you well in business, and we definitely look forward to meet you online and offline to see how we can help you expand your business to up to 140 nations via something as wonderful and practical as local DID phone numbers. Visit to get started!

DID = direct inward dialing

Which conferences and exhibitions will DIDX partcipate in soon? OpenSIPS Summit May 1-4 in Amsterdam, Global Voice Congress May 6 in Chicago, ITW May 6-9 in Chicago and CommunicAsia June 26-28 in Singapore! Visit and message us to meet and discuss your business’s exciting accompBe a LinkedIN All Star by DIDX DID numbers business.lishments and unbelievable challenges!

DIDX R & D in Infrastructure, API and Automation 2018

By Suzanne Bowen (VP Event Management) and Kamal Panhwar (DIDX CTO)

We work smart to make sure the experience that our DIDX customers and vendors have in our direct inward dialing DID number marketplace… keeps a smile on their faces, that helps them get more customers and that helps them retain those customers. Some of our projects include the following to keep DIDX improving!

We must have super reliable communication infrastructure. We are working to improve our SIP proxy server. Currently we have for 30 Asterisk servers to connect with proxy. Our infrastructure uses IBMCloud (used to be SoftLayer cloud) and DigitalOcean cloud servers. OTOH, thousands of our DIDX customers and vendors use FreeSWITCH and other softswitches, and we work with them every day to ensure excellent interoperability between their switches and the DIDX API.

We’re scripting for load balancing and proxy server with OpenSIPS. Our CTO Kamal Panhwar, DIDX sales manager Muhammad Ali and the whole team made that choice after several online and offline meetings and testing with OpenSIPs developers and businesses that currently use OpenSIPS. Several 100 of our DIDX members use Kamailio, too.

API (Application programming interface)
Last year, we made a decision we need to improve our DIDX API. Our system was using SOAP (simple object access protocol) format. The challenge while upgrading is that many of our clients use SOAP, so we will continue to give backward compatibility. Our new API will use Restful, so we can provide both Json and XML support.


We just changed the appearance of our DIDX interface from the black, yellow and burgundy bumble bee look to a much calmer turquoise, white and black. I like them both. (I am Suzanne Bowen.)




blue, white, black didx schemeAutomation
We are researching Dockers and Kubernetes (to create a virtual machine template). When one of our servers fails or we need to load balance, a new server will automatically be created.

We are beta testing Homer software to capture SIP packets. The use of this gives us more robust information about the DIDs that are available to buy and that are sold on DIDX in file PCAP format. With this … customers will have more info about the SIP with DID numbers available on

Though the Internet of Things are exciting and important, we still keep an emphasis on the fact that the Internet of People are even more so. We strive to serve our vendors and buyers of DID numbers with TLC on DIDX because the people are what is important.



Wake Up to the Rewards of CommunicAsia 2018 June 26-28 Singapore

Feeling overwhelmed from so much to do and need a pick-me-up? Watch our energizing video that will pick you up and give you one of the best ideas ever; head to Singapore June 2018 and meet new people involved in communications and technologies business at CommunicAsia. We definitely want to meet you. Check the DIDX events‘ page to find out our booth number. Message us to meet up!

How to Celebrate DIDX Successful 2017? Give back to customers and vendors!

Get DID phone numbers of 95 nations. Be local no matter where you are.

Get DID phone numbers of 95 nations. Be local no matter where you are.

How does our team celebrate the success of 2017? Like celebrating because of our DIDX community we can make available DID numbers of 140 nations…that’s 55 more nations than when we first created this blog’s image. DID number service By giving back to those who made that possible, our vendors and customers. Here’s how:
1. Our current customers receive 50 % credit back on all #directinwarddialing #didnumber #virtualnumber purchases through January 31, 2018.

2. Our new #directinwarddialing #didnumber #virtualnumber customers can choose from 2 specials: either get $50 back on their 1st $100 top up through Jan. 31, 2018 OR receive 20 % back on all their new DID purchases from now through May 31, 2018.

3. All our #directinwarddialing #didnumber #virtualnumber customers can complete local number porting of DIDs of *24 select nations into DIDX free until further notice. *

4. All our #directinwarddialing #didnumber #virtualnumber sellers (vendors) on DIDX will see even more sales than ever because these generous offers are already making that happen.

With kindest wishes from all of us at DIDX since 1999! May 2018 be your best year ever.

Congo and Namibia DID Now Available via Pre-Order on DIDX Phone Number Ecosystem

a DID phone number is less expensive than an office












The Democratic Republic of the Congo is the second largest nation in Africa, the 11th largest in the world! It is well-known for its oil and gas company Cohydro, mobile network company Supercell, human rights activist Floribert Chebeya Bahizire and entrepreneur Odette Maniema Krempin. Namibia, on the other hand, is known for cricketer Danie Keulder, ICT company Veya, marine diamond mining, and its upper middle income label after years being labeled lower. It is predicted that soon it will be the world’s 2nd largest producer of Iranium. now makes available DID phone numbers that its wholesale members (subscribers, customers) can pre-order starting now.

Organizations and individuals anywhere in the world can ask their mobile, VoIP or other type of communications or phone service provider to “join DIDX.” Once they do that, those organizations and individuals can have access to having a “local presence,” “a virtual presence” in practically any city in the world via phone number that is local to that city. No need to build an office. Own a local phone number from that city so that people who live and work there will be able to call you inexpensively or even free. Say, “hello” to new business with very little investment!

Mobile, VoIP and other type of DIDX buyer and seller members, feel free to sign in to your DIDX account today to order.

What is Direct Inward Dialing? What are the benefits when used with SIP or IAX?

Traditional speaking, Direct Inward Dialing(DID) is a service of a local phone company (or local exchange carrier) that provides a block of telephone numbers for calling into a company’s private branch exchange (PBX) system. Using DID, a company can offer its customers individual phone numbers, one for each person or workstation within in the company. Even early on, some local phone companies began to provide multiple numbers on one single telephone line. This very concept started to gain momentum when even CLECs began to provide these numbers by routing them on a SIP server. SIP (Session Initiation Protocol) is a protocol used in VoIP communications which enables users to make/receive Voice and Video calls over the Internet instead of through traditional telephone lines.

When DID(Direct inward dialling) is transferred via SIP, it becomes boundary-less. This means, for example, if your USA number you have purchased for your communications service customer is routed on SIP, it provides the possibility to ring on any device that is linked to the Internet anywhere in the world. This is where SIP gives the big boost to DID numbers. When a call routes on a SIP server, it can be handled in any way and transferred in many ways. It can even be controlled programmatically. The voice can be transcribed, digitized, recorded and replied back to by using Text to Speech software, for example. So that is just one example. There are numerous, exciting use cases for this technology.

IAX is also a protocol created to save bandwidth. It lets multiple SIP servers connect together. SIP is very famous and has received more attention than IAX. Even people who do not have much technical education dropped the acronym VoIP and began talking more about SIP. IAX is a very good protocol for connecting servers to servers. That does not mean IAX cannot be used on the client side, but commonly SIP is more famous for connecting with clients.

Note: In Europe, DID is referred as DDI(Direct Dial in). There is also a growing number of people who define the acronym “DID” as direct inbound dialing.

By Kamal Panhwar, CTO and Lead Developer at DIDX

Communications companies in any nation that want to sell direct inward dialing phone numbers to the 25,000 DIDX commmunications service provider customers or who want to buy direct inward dialing phone numbers and resell to their clients, sign up today at

What is CCD in Telecommunications World?

What is CCD? Converged Communications DivisionWhat is CCD in telecommunications and IP communications industries? Dialogic and Sangoma show lucrative it is. Dialogic just sold its #CCD (Converged Communication Division) assets to Sangoma, making this the latter’s sixth acquisiton, and we know the age-old quote; the digit “7” is a lucky number. Sincere kudos to both companies. You and we will meet these kind of companies for crucial biz dev and info gathering at +TMCnet +ITEXPO Feb. 14-16 in Fort Lauderdale. Read more at 

What is converged communications division? It is a division that is focused on the integration of voice and data. This division enables companies to create powerful communication solutions for today’s flexible and buy-on-demand and customer-service-on-demand world.

Let us invite you once again; you will find many of the companies who are successful in #CCD #IoT #VoIP #managedservices #chatbots#blockchain#distributednetworks and more at ITEXPO Feb. 13-16, 2018 in Fort Lauderdale, FL. See our list of important industry events at

ITEXPO Conferences and Expos Reward Exhibitors with Company Backlinks

Conferences must backlink to exhibitors and sponsors' websitesApproximately 75 % of conferences, expos and other organizational events, both big and small, little known and well-known, do not link their sponsors and exhibitors’ logos back to the sponsors and exhibitors’ company websites! Can anyone believe this? The organizations, who spend between $500 – $500,000 or more to sponsor and exhibit at one’s industry event, do not get a link back. But 25 % do, and ITEXPO is one of that percent. Just another reason to sponsor, present, exhibit and participate in ITEXPO conferences and Exhibitions. Next one is Feb. 13-16, 2018 in Fort Lauderdale, FL.

Other conferences and exhibitions that link back when you sponsor, exhibit, present and such include TelcoDays,= and OpenSIPS Summit. Give credit where credit is due. 😉 While you are here, don’t forget DIDX is ready to help your communications company… VoIP, IoT, mobile, telecom and such to gain customers, retain customers, roll out international expansion of services, save money and move way ahead of competitors. See how on our DIDX platform today.

Startups Leverage Unified Communications Enhanced by DID – Here’s How


Being developer lead at DIDX keeps me very busy in doing exactly that…leading the development improvement and education. In October 2017, I traveled to Orlando for Astricon because I wanted to learn more and share with my team later. We participate in OpenSIPS, Cluecon, Kamailio World, and Astricon whenever possible each year for this reason. At these open source communications events we gather information and develop lasting relationships. Being one human and and with the time constraint it was little bit difficult to do everything I wanted at Astricon 2017. We software developers have a little different mentality than just for business. I end up realizing I should have asked for more business cards, connected with more on LinkedIN and open source forums. So much I saw, heard and studied!

Although I love the Astricon guys who produced the networking activities, I couldn’t connect or reconnect with everyone. This article gets its inspiration from this very conundrum! Proper workflow. Let me elaborate how can we use DID numbers to enhance modern workflow.

Our modern lives are crowded with different types of communication bombarding us. A customer can be calling you, messaging you, sending Facebook chats, popping into Whatsapp, posting emails and using other ways of communication, like one big tornado scattering everything in the head and the workflow. Data pings us on these all media and on top of that, on different devices like smart phone, tablet, e-Reader, FitBit, laptop and more. We try to retrieve all our data on mobile phone, but it is not easy to keep up with all information in that one place on such a tiny screen.  

Seven years ago, I was employed by a company in which our communications operations were highly inefficient. Every agent was busy practically 12 hours per day on phones/email/calls/faxes and mobile, running around in circles. I created a solution just by adding a very expensive Bluetooth earphone and connected our mobile phones with computer. Now, we were able to use our mobile SMS with computer, place and receive calls with our computers. Email was already on the computers. We were finally and practically hands free to do all work quicker and more fluently with less stress! We controlled everything through our computers, on the bigger screens. Sometimes when I was on call, I was also using SMS response or receiving response as was practical in handling the customer during call. That made my worklife much more productive.

Things would be great if our communication was only composed of that on phone, SMS and email. Today…not a reality. We are locked down in a world where our sales/customer faces are handling much more than those three modes of communication. We add Whatsapp/LinkedIN/Facebook/Twitter/Viber/Instagram/Skype and many more. Companies do not want to put restrictions on customer to one way of communication. We at DIDX, for example, want to communicate with our customers in the way that is most comfortable for them. Our inner selves, our company customer appreciation strategy is strong. We believe our work is customer-focused, and the customer is always right.

Programmable! What is this dilemma?

You will hear of many things labeled programmable. For me, most important is a direct inward dialing number (DID number) which must be programmable. This way most of our communication is unified on one device, in my case, my computer. As a software developer, for me, these DID numbers are life-changing stuff. Let us discuss how I use a DID number to make my life, especially work life more unified and organized.

A standard computer allows me to check my email. I removed the hassle of SMS on a separate device by connecting my mobile phone to my computer, but it was not a good enough connection. It still requires me to remain close to my computer to access my data. If I have a DID number that supports SMS, my issue is resolved without any complication. I can use my browser or my mobile phone to send and receive SMS, whichever is most convenient at any given time. Both worlds meet together. There is another cool thing; my contacts remain constant on both locations. Awesome, but get ready to be surprised more… keep reading.

What about unifying and managing additional methods of communications?

Even with the above improvements in unifying and organizing my data, there are still other apps I use pretty regularly. For example, my WhatsApp data is reserved to my phone still! Where should I go for help? No worries. There is one Arab guy who made an open source API to handle this. We can use our DID number, integrated with WhatsApp using this API. Now, our WhatsApp data, just like our SMS, is available on mobile and web. I know you will ask: what about WhatsApp web? But see it is about data in one place.  

Please note there are some issues related with WhatsApp Web. It is said that the special API made by the Arab guy violates WhatsApp terms, and that the guy who made the API received a few notices. Perhaps there is no issue with just one fixed number? I hope in the nearest future that WhatsApp will reconsider their terms and conditions in the name of our global quest for simplifying life, especially worklife. WhatsAPP does not allow API integration because of the potential it presents to encourage spamming. There must be a way to keep spamming from happening while enabling API integration..

You said something about voice?

The beauty of the DID number is that it can be easily integrated with Asterisk or FreeSWITCH and a termination provider. They have great voice quality. I can be reached like a local call by my customers if the DID number is local to him, and I can use the same DID number to call my customer. I can also use speech to text facilities to grab all data which customers might want to use to call.

Instagram and other similar services all have APIs available and can easily be integrated in my computer or other device system to have everything I need to communicate…unified and organized.

It means when I open email, I have the option on my message to call/SMS/WhatsApp… oops! But what about Facebook that so many of us use? Keep reading

Social platform communication

Practically, all social networks enable API integration, so I can integrate my Facebook/LinkedIn portals, too. Now, I can collect that information and make available as needed for my office workflow. Everything is collected and unified. I can use any good open source CRM like sugarCRM or Vtiger and keep everything organized that is related to business in the window of my browser.

Is it not cool? Many companies are working to build the most efficient unified communications setup,, but due to the nature of technology, it is up to your startup as to when and how you will do so. You can also check (company where I work) and other DID providers to take advantage of the power of local DID numbers from every nation. Who knows? Ideally, you might be the founder of another great startup that pulls DIDs and all these unified communications features and more together that are required to run a truly modern business workflow.

Please comment whatever you think. I will deeply appreciate your feedback of debate and further elaborations.

Written by Kamal uddin Panhwar Senior Software Developer DIDx INC (