TelecomsXChange (TCXC) Blog

Phone calls haven’t changed much in nearly a century. We still face long wait times. As Gustaf Alströmer from YCombinator put it, we encounter confusing IVRs. There’s also the need to “press star or pound.” But that’s starting to change. Voice AI powered by advanced language models is now so good, it feels like talking to a human. It’s a glimpse into the future. To scale this future globally, voice AI companies need telecom infrastructure that’s just as fast, flexible, and intelligent.

Voice AI startups have a mission. They aim to revolutionize how businesses interact with customers. They power intelligent IVRs, virtual agents, and real-time messaging. But building a smart voice AI application is only half the challenge. To operate globally, you need telecom infrastructure that scales fast, works reliably, and keeps costs predictable.

This guide explores the key telecom challenges Voice AI startups face. It also explains how TelecomsXChange (TCXC) powered exchange platforms help API-first companies like VAPI connect globally in minutes, not months.

Every Voice AI product relies on a telecom backbone to function effectively. At a minimum, you need:

Traditionally, accessing these services across countries means months of paperwork, carrier negotiations, and unpredictable costs. That’s time and money most startups don’t have.

Platforms powered by TCXC remove that complexity. You don’t need to stitch together fragmented carrier relationships anymore. Instantly access hundreds of vetted global telecom providers via a single API and commercial agreement.

Thanks to wholesale pricing plus per‑second billing, you can see total cost savings in the 40–60% range. Savings depend on your average call length and destination.
More savings = more resources to funnel into AI‑agent innovation, UX improvements, and customer growth.

This flexibility gives Voice AI teams a competitive edge—enabling fast experimentation, faster rollouts , and global reach. With a simple script, you can auto-select routes based on target price. You can also select routes based on quality. Then, instantly interconnect via SIP. No manual back-and-forth is required.

TCXC-powered platforms are designed to grow with your use cases. They cater to both small IVR startups and enterprise-grade AI assistants. This applies whether you’re serving one region or the entire world.

One Voice AI provider used a tcxc powered marketplace to expand their IVR and messaging services into 15 countries—within hours, they:

The post How Voice AI Startups Unlock Fast Global Voice & SMS Interconnections appeared first on TelecomsXChange (TCXC) Blog.

There was one clear message across ITW 2025: Telcos need to figure out who they are — are they infrastructure providers, tech companies, or platform enablers?

To stay relevant, telcos have to start thinking differently. They need to invest in programmable, developer-friendly platforms that support automation, make integration easier, and give room for others to innovate. APIs aren’t just backend plumbing anymore — they’re how services get built, delivered, and monetized.

At TelecomsXChange (TCXC), we’ve believed this since ITW 2016, where we shared that view with execs from Verizon, Telefónica, and others. We’ve stayed consistent: telcos should double down on their strengths — infrastructure, regulation, and uptime — and let others build the next layer of value on top.

This year, a few key takeaways stood out.

The CAMARA API initiative has good intentions — a common framework across carriers. But real-world adoption is slow and inconsistent. Each operator is doing their own flavor of CAMARA, and that defeats the point.

More importantly, the roadmap isn’t being shaped by developers. It’s still telcos steering the ship, often with legacy thinking.

The real need? Developer experience. Whether it’s CAMARA, GSMA Open Gateway, or your own APIs — what matters is: can developers actually use it easily?

Look at Twilio and Nexmo. They didn’t wait for industry-wide standards. They just built APIs that worked and made developers productive.

Most of the API efforts in telecom today are focused on enterprise use cases — voice bots, 2FA, messaging, etc. But wholesale, which still drives a big chunk of revenue, is often left out.

There’s no shared API approach yet for basic wholesale needs — things like:

At TCXC, we’ve built exactly that: a programmable layer that gives telcos a single wallet, one agreement, and a unified API to resell voice, messaging, and numbers.

This isn’t theory — it’s working in production.

What’s more, there’s still a big divide between data wholesale and traditional telecom wholesale. Different teams, systems, and mental models. We believe that wall needs to come down — and we’re building toward that.

Some telcos are trying to solve this by buying startups. Others are trying to build software in-house. But both routes are hard.

Acquisitions often fail because the startup ends up being run like the telco — slow processes, too much structure, culture mismatch.

Building from within? Even harder. Not just because of tech, but because of mindset. Telcos are built for stability and risk management. Tech companies thrive on speed, iteration, and occasional chaos.

It’s not a talent problem. It’s a DNA problem.

There’s a better option: collaboration. Communities like TADHack show how telcos and developers can create together. Don’t control innovation — enable it.

Telcos don’t need to reinvent themselves as tech companies. What they do need is to open up their infrastructure in a clean, secure, and scalable way.

Focus on what you’re great at:

And let developers, startups, and partners build the rest.

Think about what the App Store did for mobile. That’s the kind of opportunity telcos have right now — to become the foundation others build on.

Be the platform. Let the innovation happen around you.

The post ITW 2025 Recap – Telcos Face an Identity Crisis or a Platform Opportunity? appeared first on TelecomsXChange (TCXC) Blog.

In an earlier blog post, we introduced Open Text Shield (OTS) as a free, AI-powered SMS firewall designed to go beyond traditional rule-based filtering systems. With OTS, communication service providers (CSPs) can protect their networks across multiple messaging platforms such as SMS, email, and RCS. As spam, phishing, and scam attempts increase, the need for real-time, AI-driven solutions is becoming crucial.

Building on the success of that post, we’re excited to share how the latest OTS and SMPP protocol integration enhances your SMS firewall by not only blocking phishing attempts in real time but also generating revenue from scammers—without sending the harmful content to subscribers.

What if you stop SMS scammers in their tracks while monetizing their failed phishing attempts? This is exactly what OTS does when integrated with the SMPP protocol. With this powerful combination, phishing messages are identified instantly, blocked from reaching subscribers, and the scammer is charged for the attempt—boosting CSP revenue in the process.

Let’s take a real example from an SMPP integration powered by OTS.

A phishing message arrives:
“Urgent! Your bank account has been compromised. Click here to secure it now: http://bit.ly/73737373a”

The result? DING DING —scammers pay, subscribers stay protected, and CSPs profit.

Traditional SMS firewalls rely on static rules that can’t keep up with the constantly evolving tactics of phishers and scammers. OTS, with its AI-driven capabilities, addresses these limitations by learning from new threats and adapting in real-time.

Here’s why OTS is the future of SMS firewalls:

OTS was built with flexibility in mind. Whether you’re using SMPP, SIP, RCS, or SMTP, OTS seamlessly integrates into your existing infrastructure. This makes it the perfect companion for any SMS firewall strategy.

Deploy in Two Commands:

Try the Cloud-Hosted OTS API:

If you’re relying solely on a traditional SMS firewall, it’s time to consider OTS as either a complement or a replacement. With its AI-driven content analysis and real-time threat detection, OTS ensures your network stays secure from the ever-evolving tactics of scammers.

Key Features of OTS:

As phishing and spam attacks become more sophisticated, traditional SMS firewalls can no longer keep up. OTS, integrated with SMPP, offers a future-proof solution for CSPs. Not only do you protect your subscribers, but you also capitalize on failed phishing attempts to increase revenue.

Start using OTS today and experience the power of real-time, AI-powered protection that also boosts your revenue.

Download OTS:

Need Help?
Our team is here to assist you with integrating OTS into your infrastructure—completely free of charge. For expert support, reach out to us at [email protected].

The integration of OTS with your SMS firewall not only enhances security but also monetizes scammers in real time. By using advanced AI, real-time analysis, and easy integration with existing systems like SMPP, you can safeguard your network while increasing profitability.

Don’t settle for outdated SMS firewalls—upgrade to OTS today and stay ahead of modern-day threats.

#SMS Firewall #OpenTextShield #AI Security #RealTimeProtection #TelecomSecurity #CSPRevenueBoost

The post Real-Time SMS Firewall: Catching Phishers and Monetizing Scammers with OTS and SMPP Integration appeared first on TelecomsXChange (TCXC) Blog.

Providing real-time billing to your communication platform as a service (CPaaS) customers is critical, as it ensures that everyone pumps traffic within the authorized limits. Centralized and real-time charging expands your selling possibilities and decreased your risk of fraud by a significant percentage.

In this blog post, we’ll go over how to use TelecomsXChange (TCXC) as a realtime Authentication, Authorization, Accounting (AAA or Triple A) for your Restcomm cloud CPaaS platform.

TCXC can provide your sub-accounts on Restcomm cloud with realtime prepaid charging leveraging Restcomm Bring Your Own Carrier (BYOC) feature. This feature allows you to route each sub-account to a a specific SIP or SMPP profile.

Let’s say you want sub-account AC12348xxxx for (Enterprise A) to go through prepaid billing before the message or voice call is finally sent out, in a few steps you’re able to achieve this:

• Login to TCXC Buyer Portal
• Link your TCXC Account(s) with your Restcomm Sub-account(s)
• Manage prices for Voice and SMS in TCXC Seller console or API
• Set prepaid limits or credit limit per account, when account reaches 0 the traffic will be automatically blocked.
• SMS / Voice Traffic will pass through TCXC to perform AAA before it’s sent to the final termination destination

Additional features worth mentioning:

• Set SMPP rate limit per account
• Set SIP concurrent call limit per account
• Authorize based on country prefix length or MCCMNC
• Share balance between accounts or use Own balance per account
• Block/Unblock accounts
• Online top-up (Stripe, CashU, Bank, ACH, PayPal)
• Set online top up limit per sub-account
• Price change notifications

A critical part of CPaaS is phone numbers (AKA Virtual Numbers or DIDs), TCXC platform gets this part handled, sellers can host and set the pricing for phone numbers using the TCXC Seller console or API,

• Set monthly recurring price per phone number
• Set one time setup fee
• Set per minute/second price for incoming voice calls to the number
• Set per message incoming rate for SMS (Concatenated Billing is supported)
• Immediate wallet deduction upon purchase
• Low balance reminders
• Upcoming number renewal alerts
• Automatic monthly recurring collection from prepaid wallet
• Virtual number subscription logs (History of number ownership)
• Automatically remove number from API and console upon purchasing
• Automatically restore number to API and console upon canceling or releasing the phone number
• Price change notifications

• Configure verification document requirements where needed.
• Authorize inbound SMS and voice calls only once verification documents approved.
• Set number(s) capabilities [Voice, SMS, FAX, Video].
• Automatic RESTful API enablement for all your hosted numbers.

Once you have finished hosting you’re virtual numbers on TCXC and setup the billing details for them, Restcomm can leverage the Programmable X DID exchange API to interact with virtual numbers on the backend.

Contact [email protected] for assistance on setting up communication platform as a service (CPaaS) prepaid billing.

The post CPaaS Prepaid Billing (AAA) appeared first on TelecomsXChange (TCXC) Blog.

You’re in a hurry to search and find a UAE virtual phone number and point it to your SIP infrastructure to start accepting business phone calls, what do you do?

In this blog post we show you how to search and buy a legit UAE phone number and point it to your IP-PBX to start accepting phone calls.

In order to search for a phone number and buy it , you may follow the below steps:

• Login to your TelecomsXChange buyer account here
• In the navigation menu click on DIDs >> Market view
• In prefix field enter [971]
• Click the Submit button
• A list of all available UAE phone numbers are shown in the table
• Choose a number you like to own by clicking on the BUY button
• In Point To enter the SIP address where you’d like to point the number to and click Purchase to complete the transaction

You may search, find and purchase virtual numbers via TCXC Programmable X API, here is how:

Search for phone numbers:

Buy the phone number (API Call):

API Response:

• Build a Local Customer Base in United Arab Emirates
• Enhancing Existing Customer Service Experience
• Drive Cost down for your customers
• Increase voice quality and two-way sms communication with your consumer base
• Scalability automation, go from 1 channels to many  channels without worrying about upgrading your hardware infrastructure

P.S: KYC documentation are required for numbers to be activated.

For more information about UAE DID Numbers,  contact our sales team here

The post How To Buy UAE DID Numbers in 2020 appeared first on TelecomsXChange (TCXC) Blog.

In this tutorial we demonstrate how you can interconnect with Telin (By Telkom Indonesia) in minutes. This adds another 0 hop & Open RTP carrier interconnection for you seamlessly. Telin made available to all TelecomsXChange (TCXC) members. You can utilize Telin’s direct routes immediately from Market View. 

Established in 2007, Telin is a subsidiary of PT Telekomunikasi Indonesia (Telkom), Indonesia’s largest state-owned telecommunication and network service provider serving more than 200 million retail customers (including mobile, fixed broadband, and other subscribers).

Telin offers a comprehensive range of high-quality international carrier voice, data services, and business solutions aimed wholesale, enterprise, digital player, and retail customers with operations in Indonesia, Timor Leste, Singapore, Hong Kong, Australia, Malaysia, Macau, Taiwan, United States, Myanmar, and Kingdom of Saudi Arabia. Telin’s services include Voice, Data Connectivity, Internet & Content, Mobility, Enterprise Service, and Other Solutions.

For more details visit https://www.telin.net/

1- Login to your TelecomsXChange Buyer Account

2- Navigate to Market View page

3- In Seller field enter “Telin” and click “Search”

4- Click on the + icon to purchase Telin’s routes

5- You will receive tech details (IP+Prefix) to start terminating to Telin from your allowed SIP servers IPs.

• Better Quality of Service (QoS) for your customers
• Guaranteed Caller ID (CLID) Delivery
• Better Price
• Open RTP (Direct Media Flow to Telin’s Infrastructure)
• Programmable API for prices, interconnection, Ticket escalation

Developers may interconnect and interact with Telin’s routes and prices via API programmatically, to do this you may visit TCXC developer documentation for details.

The post Interconnect With Telin In Minutes appeared first on TelecomsXChange (TCXC) Blog.

Audit logs listst important teams events. An admin can review audit logs to determine:

• When users logged in.
• Which users performed a specific action or any action via web

Audit logs currently include events for everything done via web access like team management, billing, and security.

In your TCXC Seller/Buyer account portal click on Logs >> Web Access

In the Web Access logs page, you see information categorized as USERNAME, SOURCE IP, REQUEST_URI, REQUEST and DATE/TIME

For more information about audit logs and how to set it up for your TCXC team members, contact the support team.

The post Introducing Audit logs for Teams appeared first on TelecomsXChange (TCXC) Blog.

TelecomsXChange (TCXC) platform enables modern communication providers to buy and sell voice, SMS and virtual numbers (DIDs) securely and transparently using intuitive UI or programmatically using API.

What’s new?

From today you’ll notice new API endpoints for buyers and sellers and new UI features in TCXC portal, find below brief summary of what’s new.

• When trying to search for virtual numbers (DIDs) you’ll notice a new backorder link available if no numbers are found, this enables buyers to submit a back order for DIDs that are not immediately available in DID market view
• You can now submit and view DID backorders.
• Sellers can now find DID subscription logs under DID menu to understand ownership history and billing better
• Buyers can now find DID subscription logs under DID menu to understand billing and cancellations easier.
• Buyers and sellers have new filter options for buyers Payment History and Seller Payout history allowing users to run advanced search for payments. New filter options includes notes, amount, payment system used.
• Seller / Route Edit UI – Replace Check box with Toggle Switch
• New React App for public use. Find working numbers, anywhere (NOC Tool) Try it now (Built using TCXC API V.2)
• New API! allows sellers to Sell & Update DID numbers programmatically.
• New API! allows buyer/sellers to retrieve payment history via API.
• New API! allows sellers to retrieve market’s top destinations with traffic.

Bug Fixes

• We’ve fixed a bug in DID market view where SQL error showed in some cases.

For more information on this release, contact [email protected] or visit members portal if you’re an existing member.

The post Release Notes: New APIs, DID Features & More.. appeared first on TelecomsXChange (TCXC) Blog.

Romania, Nov. 12, 2019 — Nobel Globe, a market-leading communication service provider (CSP) joins the TelecomsXChange platform to provide buyers on the platform instant access to zero hop direct SMS routes to Europe to deliver mission-critical messaging to end-users.

Having entered the telecommunications market in 1998, Nobel has proven its ability to constantly grow and keep up with industry trends by successfully being a market leader in numerous areas of the telecom industry. 

Products like prepaid calling cards, postpaid long-distance, physical distribution, superior carrier services worldwide and turnkey call center solutions, are only a few of the areas in which Nobel is a trusted brand for many years. 

Applying the same recipe that took us to the peaks of the voice industry, today we can offer SMS worldwide connectivity, being able to reach over 800 operators in 180 countries across the world. 

Nobel’s messaging services can be integrated via multiple API services that are integrated with the customers’ existing infrastructure successfully delivering digital interaction over SMS as the communications channel. 

As a result, enterprises gain increased mobility, efficiency and value that they can pass on to their customers. With our in-house technical expertise, installed at various operator facilities, our SMS solutions deliver better accountability, load-balancing, and ROI beyond any other. 

Nobel SMS provides international A to Z SMS termination at the most competitive rates, web-based SMS applications, bulk SMS for SMS campaigns and advanced SMS enterprise solutions via API with real-time monitoring. 

We are excited to list our SMS direct routes on TelecomsXChange’s open and commission-free exchange platform, as it gives end-customers full visibility and control on their critical choice of SMS, voice and DIDs network providers. TelecomsXChange is a fast-growing cloud exchange platform and one unified platform that can be utilized using a graphical user interface (GUI) or programmatically using application programming interface  “API”.

With this partnership, CSPs or CPaaS providers on TelecomsXChange can utilize Nobel direct routes in seconds (Romania, India, Spain, Italy, Switzerland, China, Vietnam, Poland, Germany, etc.) and premium routes to deliver high importance, mission-critical messages to end users globally.

• About Nobel SMS: https://www.nobelsms.com
• About TelecomsXChange Platform: visit www.telecomsxchange.com 
• API Tutorial: How to access SMS prices in real-time, interconnect with Nobel programmatically using APIs visit the  Programmable X documentation page.
• Discuss pricing directly with Nobel’s account manager. Click here

The post Nobel Joins TelecomsXChange appeared first on TelecomsXChange (TCXC) Blog.

Bharti Airtel today, October 23rd, 2019, offered special wholesale rates to India (Open RTP) on TelecomsXChange (TCXC) to further support the TCXC members community. Sign in to members area to utilize the special rates India and Bangladesh via TCXC with one click interconnect or programmatically via API.

Communication service providers (CSPs) that seek high quality termination to INDIA over VoIP/SIP protocol can now get interconnected and start utilizing the service in Minutes!

Airtel Communications will be transiting your calls to India all operators (Price at flat rate $0.0093 (USD) 1/1 “Effective on May,1 , 2020”) – if you’re reading this later than this date the price may have decreased or increased. please login to market view for real-time pricing info.

Bharti Airtel Limited, also known as Airtel, is an Indian global telecommunications services company based in Delhi, India. It operates in 18 countries across South Asia and Africa, and also in the Channel Islands.

1. Login to your Telecomsxchange buyer account, New user ?
2. Click on Market View
3. Enter 91 in Prefix field
4. Enter “Airtel” in the Seller field and choose route “Gold+”
5. Click Search
6. The rates will show up and now you can click on “+” icon to interconnect and purchase this route.

Rate sheet “Full Price list” will be automatically emailed to you once Route has been purchased along with SIP Settings and prefix to send your calls to India via Airtel.

To interconnect using application programming interface (API) please visit our developer documentation page.

For any clarification, customers can reach out to [email protected] or [email protected]

The post Direct Termination to India (CLI – OpenRTP) appeared first on TelecomsXChange (TCXC) Blog.