# IDT Express: IDT Express is one of the world leaders for DID APIs, Wholesale Voice Termination, and A2P SMS\.

> IDT Express, a division of IDT Carrier Services, is a global provider of Wholesale Voice, DID APIs, and A2P SMS services to businesses across the globe\.

Generated by Yoast SEO v28.2, this is an llms.txt file, meant for consumption by LLMs.

## Pages
- [AI calling](https://www.idtexpress.com/ai-calling/)
- [Learn](https://www.idtexpress.com/blog/)
- [AI Agents](https://www.idtexpress.com/sip-trunking/ai-agents/)
- [UK SIP Trunking](https://www.idtexpress.com/sip-trunking/uk/)
- [UK DID Numbers](https://www.idtexpress.com/did-numbers/uk-did-numbers/)

## Posts
- [What Is SIP Termination? A Wholesale Buyer's Guide](https://www.idtexpress.com/blog/what-is-sip-termination-a-guide-for-resellers-and-telecom-businesses/)
- [WebRTC vs SIP for Voice Bots: Which One Your AI Agent Actually Needs](https://www.idtexpress.com/blog/webrtc-vs-sip-for-voice-bots/)
- [How Much Does the WhatsApp Business API Cost in 2026?](https://www.idtexpress.com/blog/how-much-does-the-whatsapp-business-api-cost-in-2026/)
- [WhatsApp Business App vs API in 2026: Which One Your Business Actually Needs](https://www.idtexpress.com/blog/whatsapp-business-app-vs-api-in-2026/)
- [Best WhatsApp Business API Providers in 2026: An Honest Buyer's Teardown](https://www.idtexpress.com/blog/best-whatsapp-business-api-providers-in-2026/)

## DID Prices
- [Algeria CallerID Only](https://www.idtexpress.com/blog/did_pricing/algeria-callerid-only/)
- [Albania Two Way](https://www.idtexpress.com/blog/did_pricing/albania-two-way/)
- [Albania Toll\-Free](https://www.idtexpress.com/blog/did_pricing/albania-toll-free/)
- [Albania Local](https://www.idtexpress.com/blog/did_pricing/albania-local/)

## Pricing Plans
- [Essential](https://www.idtexpress.com/blog/pricing_plan/essential/)
- [Professional 2K](https://www.idtexpress.com/blog/pricing_plan/professional-2k/)
- [Connect 2K](https://www.idtexpress.com/blog/pricing_plan/connect-2k/)

## Videos
- [What are the penalties for violating SMS spam laws?](https://www.idtexpress.com/video/what-are-the-penalties-for-violating-sms-spam-laws/): In this video, we break down the primary laws governing SMS marketing—primarily the U\.S\. Telephone Consumer Protection Act \(TCPA\)—and explain the massive financial risks involved if you don't get consumer consent right\.
- [How do you prevent SMS fraud \(smishing\) in enterprise messaging?](https://www.idtexpress.com/video/how-do-you-prevent-sms-fraud-smishing-in-enterprise-messaging-2/): 🛡️ Enterprise Smishing Defense: How to Stop SMS Fraud in Your Business Communications
- [How to write SMS Marketing copy that doesn't feel spammy](https://www.idtexpress.com/video/how-to-write-sms-marketing-copy-that-doesnt-feel-spammy/): How to Write SMS Marketing Copy That Doesn't Feel Spammy \(The Ultimate Guide\)
Are you ready to use SMS to drive sales without annoying your customers? 📱
- [Implementing Microsoft Teams as a Cloud Telephony Solution](https://www.idtexpress.com/video/implementing-microsoft-teams-as-a-cloud-telephony-solution/): 📞 Can Microsoft Teams replace your office phone system?
Yes—when you turn it into a full cloud telephony solution\.
- [What is STIR/SHAKEN? All You Need to Know](https://www.idtexpress.com/video/what-is-stir-shaken-all-you-need-to-know/): 🚫 Tired of scam and spoofed calls?
Then you need to know about STIR/SHAKEN—the technology fighting caller ID fraud\.

## Compare
- [IDT Express VS Telnyx](https://www.idtexpress.com/compare/idt-express-vs-telnyx/)
- [IDT Express vs Twilio](https://www.idtexpress.com/compare/idt-express-vs-twilio/)

## News Posts
- [Chile Implements Mandatory 600 and 809 Prefixes for All Commercial Calls to Combat Spam](https://www.idtexpress.com/news/chile-implements-mandatory-600-and-809-prefixes-for-all-commercial-calls-to-combat-spam/)
- [ANATEL Implements New Call Identification Requirements: Act No\. 12\.712/2024 Targets Telemarketing and Robocall Control](https://www.idtexpress.com/news/anatel-implements-new-call-identification-requirements-act-no-12-712-2024/)
- [Shocking Surge: Over 4\.4 Billion Robocalls Hit Americans in June 2025](https://www.idtexpress.com/news/shocking-surge-over-4-4-billion-robocalls-hit-americans-in-june-2025/)

## Events
- [WWC Madrid 2026](https://www.idtexpress.com/events/wwc-madrid-2026/): Join IDT Express at Wholesale World Congress 2026, the premier meeting place for the wholesale telecom community, connecting voice, messaging, and infrastructure leaders from across the globe\.
- [Batic 2026](https://www.idtexpress.com/events/batic-2026/): Join IDT Express at BATIC 2026, one of the leading telecom gatherings in the Asia\-Pacific region, bringing together carriers, mobile operators, digital infrastructure providers, and technology innovators from across the globe\.
- [Capacity Latam 2026](https://www.idtexpress.com/events/capacity-latam-2026/): Connect with the IDT Express team at Capacity LATAM 2026 in São Paulo and explore new opportunities in voice routing, DID numbers, and telecom partnerships\.
- [GCCM London 2026](https://www.idtexpress.com/events/gccm-london-2026/): Join IDT Express at GCCM London 2026, one of Europe’s key gatherings for the global wholesale telecom community\.
- [Capacity Middle East 2026](https://www.idtexpress.com/events/capacity-middle-east-2026/): Attend Capacity Middle East 2026 with IDT Express and connect with global carriers, operators, and infrastructure leaders shaping voice, messaging, and connectivity across the Middle East\.

## SMS
- [Automotive Confirmation 3](https://www.idtexpress.com/sms/automotive-confirmation-3/)
- [Automotive Alert 2](https://www.idtexpress.com/sms/automotive-alert-2/)
- [Healthcare Confirmation 2](https://www.idtexpress.com/sms/healthcare-confirmation-2/)
- [Retail Invoicing 3](https://www.idtexpress.com/sms/retail-e-commerce-invoicing-3/)
- [Telecoms Compliance 1](https://www.idtexpress.com/sms/telecoms-compliance-1/)

## Industry News CPT
- [2 Wholesale Voice Termination \- Facebook Takes Aim at Consumer VoIP Market](https://www.idtexpress.com/industry_news/2-wholesale-voice-termination-facebook-takes-aim-at-consumer-voip-market/)
- [3 Wholesale Voice Termination \- Facebook Takes Aim at Consumer VoIP Market](https://www.idtexpress.com/industry_news/3-wholesale-voice-termination-facebook-takes-aim-at-consumer-voip-market/)
- [Wholesale Voice Termination \- Facebook Takes Aim at Consumer VoIP Market](https://www.idtexpress.com/industry_news/wholesale-voice-termination-facebook-takes-aim-at-consumer-voip-market/)
- [1 Wholesale Voice Termination \- Facebook Takes Aim at Consumer VoIP Market](https://www.idtexpress.com/industry_news/1-wholesale-voice-termination-facebook-takes-aim-at-consumer-voip-market/)

## Glossary
- [Number Portability \(LNP / MNP\)](https://www.idtexpress.com/glossary/number-portability-lnp-mnp/): Number portability allows a telephone subscriber to retain their existing phone number when switching service providers\. Local Number Portability \(LNP\) applies to fixed\-line numbers; 
- [WebRTC](https://www.idtexpress.com/glossary/webrtc/): WebRTC \(Web Real\-Time Communication\) is an open\-source web standard that enables real\-time audio, video, and data communication directly between browsers and mobile applications without requiring plugins or additional software\.
- [SMPP \(Short Message Peer\-to\-Peer\)](https://www.idtexpress.com/glossary/smpp-short-message-peer-to-peer/): SMPP \(Short Message Peer\-to\-Peer\) is an open, industry\-standard protocol for exchanging SMS messages between external short messaging entities \(ESMEs\) and SMS centres \(SMSCs\)\.
- [ASR \(Answer\-Seizure Ratio\)](https://www.idtexpress.com/glossary/asr-answer-seizure-ratio/): ASR \(Answer\-Seizure Ratio\) is a key performance metric in voice termination that measures the percentage of attempted calls that are successfully answered\. Calculated as \(answered calls / total call attempts\) × 100, ASR is a primary indicator of route quality and carrier network health\.
- [LCR \(Least Cost Routing\)](https://www.idtexpress.com/glossary/lcr-least-cost-routing/): LCR \(Least Cost Routing\) is a process used by telecommunications carriers and enterprises to route outbound calls through the least expensive available route while maintaining acceptable call quality\.

## Printable
- [BYOC for MS Teams](https://www.idtexpress.com/printable/byoc-for-ms-teams/)

## Question
- [How do I cancel an account?](https://www.idtexpress.com/question/how-do-i-cancel-an-account/)
- [Do IDT Express accounts expire?](https://www.idtexpress.com/question/do-idt-express-accounts-expire/)
- [I used to have an IDT Express account but haven’t used it in a while\. Can I reopen it?](https://www.idtexpress.com/question/i-used-to-have-an-idt-express-account-but-havent-used-it-in-a-while-can-i-reopen-it/)
- [Do you provide or sell switches?](https://www.idtexpress.com/question/do-you-provide-or-sell-switches/)
- [What is required to have an account?](https://www.idtexpress.com/question/what-is-required-to-have-an-account/)

## Categories
- [Uncategorized](https://www.idtexpress.com/blog/category/uncategorized/)
- [SMS](https://www.idtexpress.com/blog/category/sms/)
- [Business](https://www.idtexpress.com/blog/category/business/)
- [Technology](https://www.idtexpress.com/blog/category/technology/)
- [VoIP](https://www.idtexpress.com/blog/category/voip/)

## Tags
- [Contact Center](https://www.idtexpress.com/blog/tag/contact-center/)
- [Call Center](https://www.idtexpress.com/blog/tag/call-center/)
- [VoIP Termination](https://www.idtexpress.com/blog/tag/voip-termination/)
- [debt collection](https://www.idtexpress.com/blog/tag/debt-collection/)
- [Stir Shaken](https://www.idtexpress.com/blog/tag/stir-shaken/)

## Countries
- [Austria](https://www.idtexpress.com/blog/did-country/austria/)
- [Belgium](https://www.idtexpress.com/blog/did-country/belgium/)
- [Chile](https://www.idtexpress.com/blog/did-country/chile/)
- [Denmark](https://www.idtexpress.com/blog/did-country/denmark/)
- [Finland](https://www.idtexpress.com/blog/did-country/finland/)

## Service Types
- [Local](https://www.idtexpress.com/blog/did-service-type/local/)
- [Toll\-Free](https://www.idtexpress.com/blog/did-service-type/toll-free/)
- [2 Way](https://www.idtexpress.com/blog/did-service-type/2-way/)
- [CallerID Only](https://www.idtexpress.com/blog/did-service-type/callerid-only/)
- [Mobile](https://www.idtexpress.com/blog/did-service-type/mobile/)

## Countries
- [United States](https://www.idtexpress.com/blog/plan_country/united-states/)
- [United Kindom](https://www.idtexpress.com/blog/plan_country/united-kindom/)
- [Canada](https://www.idtexpress.com/blog/plan_country/canada/)
- [Australia](https://www.idtexpress.com/blog/plan_country/australia/)

## Text Volumes
- [500 messages](https://www.idtexpress.com/blog/plan_volume/500-messages/)
- [1,000 messages](https://www.idtexpress.com/blog/plan_volume/1000-messages/)
- [2,000 messages](https://www.idtexpress.com/blog/plan_volume/2000-messages/)
- [5,000 messages](https://www.idtexpress.com/blog/plan_volume/5000-messages/)
- [10,000 messages](https://www.idtexpress.com/blog/plan_volume/10000-messages/)

## Event category
- [Recent events](https://www.idtexpress.com/event-category/recent-events/)
- [Upcoming events](https://www.idtexpress.com/event-category/upcoming-events/)

## SMS type
- [Alerts \& Notifications](https://www.idtexpress.com/sms-type/alerts-notifications/)
- [Confirmations](https://www.idtexpress.com/sms-type/confirmations/)
- [Reminders](https://www.idtexpress.com/sms-type/reminders/)
- [Document Requests](https://www.idtexpress.com/sms-type/document-requests/)
- [Invoicing \& Payments](https://www.idtexpress.com/sms-type/invoicing-payments/)

## SMS category
- [Marketing \& Ecommerce](https://www.idtexpress.com/sms-category/marketing-ecommerce/)
- [Retail \& E\-Commerce](https://www.idtexpress.com/sms-category/retail-e-commerce/)
- [Banking \& Finance](https://www.idtexpress.com/sms-category/banking-finance/)
- [Healthcare](https://www.idtexpress.com/sms-category/healthcare/)
- [Automotive](https://www.idtexpress.com/sms-category/automotive/)

## Industry News \- year
- [2023](https://www.idtexpress.com/industry_news_year/2023/)
- [2024](https://www.idtexpress.com/industry_news_year/2024/)

## Alphabet letter
- [C letter](https://www.idtexpress.com/idt-glossary-a/idt-glossary-c-letter/)
- [A letter](https://www.idtexpress.com/idt-glossary-a/idt-glossary-a-letter/)
- [S letter](https://www.idtexpress.com/idt-glossary-a/idt-glossary-s-letter/)
- [D letter](https://www.idtexpress.com/idt-glossary-a/idt-glossary-d-letter/)
- [B letter](https://www.idtexpress.com/idt-glossary-a/idt-glossary-b-letter/)

## Video Categories
- [SMS](https://www.idtexpress.com/video-category/sms/)
- [Voice](https://www.idtexpress.com/video-category/voice/)
- [BYOC](https://www.idtexpress.com/video-category/byoc/)

## Optional
- [Sitemap index](https://www.idtexpress.com/sitemap_index.xml)