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Products
- - Column
    - Channels
      - SMS
      - MMS
      - RCS
      - WhatsApp
      - Facebook Messenger
      - Instagram
      - All Channels
    - Column
      - Connect channels with Conversation API
        Keep things simple and connect multiple channels with one integration for an omnichannel and conversational messaging experience
      - Standalone Messaging APIs
        Take a look at our standalone, secure cloud-based messaging APIs for single channel needs
      - SMS Verification
        Secure your customer journey while increasing conversions and reducing churn
  - Use cases
    - Message Across all Channels
      All-in-one messaging across every mobile channel
    - Engage with Customers
      Start a meaningful, real-time conversation with customers today
    - Boost Customer Support and Satisfaction
      Transform customer service with relationship-building conversations
- - Voice & Video
    - Voice Services
      Make calls directly connected to the largest tier 1 network
    - Toll-Free Voice
      Give callers an easy and reliable way to reach you
    - SIP Trunking
      Call local, long distance or toll-free with the highest quality service
    - Operator Connect for Microsoft Teams
      Enable Microsoft Teams calling with Operator Connect
      
      Direct Routing for Microsoft Teams
    - Unified Communications
      Get all the tools you need in one place with our comprehensive cloud communications platform
      
      Private Label Cloud Communications
    - Emergency Services
      Promote safety and security with innovative 911 technology. Find out how our solutions let you help callers quickly reach 911
      E911 Next Generation 911
    - Number Masking
      Anonymize voice calls to protect you and your customers while keeping personal numbers safe
    - Cloud Connect for Webex Calling
      Transform the audio precision of your Webex meetings
    - STIR/SHAKEN
      Fight back against robocalls, increase call answer rates, and build consumers' trust
    - In-App Video Calling
      Build a seamless, customizable in-app video experience into your mobile and web app
    - In-App Voice Calling
      Integrate voice easily into your app for smooth real-time communication globally
    - Voice API
      Design the exact voice call flow you need with flexible and scalable solutions
  - Use cases
    - Scale Your Voice Services
      Get a complete voice solution from a single provider by setting up any call type your business needs to connect
    - Future-Proof Access to Emergency Services
      Help callers reach 911 and empower first responders to assist distressed callers
    - Implement Anonymous Calling
      Ensure privacy between end users and avoid revenue leakage through number masking or in-app calling
- - Email
    - Mailgun
      Email API – Send, receive, and track emails effortlessly with an industry-leading Email Service Provider
    - Mailjet
      Whitelabel email marketing solution--Accelerate your go-to-market with Mailjet Embedded
    - Email on Acid
      Email on Acid has the tools you need to press send with greater confidence
    - InboxReady
      Improve your inbox placement and connect with real people – your customers
  - Use cases
    - Ensure Deliverability
      Our powerful Email API scales to send billions of emails and delivers them quickly
    - Rendering QA and multi-platform preview
      Ensure your message gets seen as intended - no matter the client
  - Featured Resources
    - Report
      
      Telco transformed
      
      Get the report
    - Guide
      
      The actionable guide to increasing customer loyalty with mobile messaging
      
      Get the guide
- - Connectivity
    - Numbers
      Find a number that meets all your business needs
      
      Toll Free 10DLC Short Codes
    - Number Porting
      Keep business continuity with successful and painless number porting
    - Number Lookup
      Engage the right customers, on the right numbers
    - Voice IP Exchange
      Enhancing your connectivity with rich voice and video
    - PSTN Connect
      Gain nationwide IP access with interconnectivity to a single network
    - Fax API
      Securely send and receive faxes at scale
      
      Cloud Business Fax
  - Use cases
    - Expand Your Global Presence
      Add international and toll-free numbers for inbound calling, 2-way calling and emergency assistance
    - Text Message Enable Numbers
      Send SMS and MMS messages from any local 10-digit or toll-free number with P2P capabilities rivaling wireless carriers
    - Support Your Business Growth
      Tie numbers to voice service, call center, messaging, IoT solutions, faxing and emergency services
- - Verification
    - Verification API
      Multi-factor authentication for secure signups and logins
    - Flash Call Verification
      The faster, more cost-efficient alternative to traditional SMS verification
    - SMS Verification
      Simple, secure user authentication powered by text messaging
    - Data Verification
      No PIN, zero-click verification with proven security
    - Phone Call Verification
      Universal verification for mobile and landline numbers
  - Use cases
    - Provide Security and Trust
      Enhance app security and protect customers' shared data with scalable multi-factor authentication solutions
    - Improve Acquisition
      Increase conversion rates in your signup flow with flexible and reliable phone number verification
    - Ensure Global Reach
      Use phone numbers as a global user identity with SIM-based verification methods
  - Featured Resources
    - White paper
      
      Two-factor authentication: Why SMS is here to stay
      
      Get the white paper
    - White paper
      
      Building a smooth, secure experience with SMS-based 2FA
      
      Get the white paper
- - Applications
    - MessageMedia
      Easy-to-use messaging platform that integrates with your existing tech stack to engage your customers on the channel of their choice.
    - Sinch Engage
      Sinch Engage Software-as-a-service solution to use instant messengers for marketing, support and sales in one platform
    - Chatlayer
      Conversational AI chatbot and voicebot platform
    - Contact Pro
      Voice, video, chat, messaging, and email - all in one cloud contact center solution
    - Mobility Clients & SDKs
      Build your own customized, feature-rich mobility solution with a easy to configure cloud softphone and SDK
  - Use cases
    - Conversational Marketing
      Engage customers with meaningful, real-time conversations
    - Conversational Customer Service
      Transform customer service with relationship-building conversations
    - Conversational Commerce
      Automate the customer journey and provide unified customer experience
Solutions
- Business
  - Enterprise
    Obtain all your cloud communications solutions through one provider
  - Communication Service Providers
    Accelerate your innovation and maintain your competitive edge with our comprehensive communication solutions
  - Operators
    Optimize your operations and remove the headache of network management
- By Department
  - Marketing
    Wow your customers effortlessly with personalized messaging throughout the customer journey
  - Operations
    Boost operational efficiency and customer satisfaction with timely, relevant notifications
  - Customer Service
    Engage customers on their terms, on their channels. Our cloud-based communications platform brings your legacy support platform into the digital age!
- By Industry
Partners
- column
  - Strategic Partner
    Optimize your partnership solutions and messaging channels with conversational technology, AI automation, and SaaS applications.
    Become a partner Find a partner
  - Integrations & Connectors
    Seamlessly integrate our solutions with your favorite existing tools
- column
  - Channel Partner
    Empower your customers and boost revenue selling CPaaS solutions as an agent — voice, messaging, email, and fax for enterprise and wholesale.
  - Private Label Partner
    Exceed customer expectations with the best private label cloud solution and feel supported every step of the way.
Telco
- - Enterprise revenue maximization
    Use the range of your network assets to create new services for enterprise
    
    A2P Monetization
    Major revenue gains are waiting for you with SMS in the enterprise space
    
    SMS Firewall
    Boost security and monetize enterprise messaging
    
    Signaling Firewall
    Strengthen your network and protect your subscribers
- - Intelligent interconnect
    Secure profitability with essential interconnect services while moving to the all IP-world of your future network
    
    SMS for Operators
    Global SMS interconnectivity made easy
    
    SMS Select
    Safeguard SMS monetization and tighten up security
    
    MMS for Operators
    Global MMS interconnectivity made easy
    
    Messaging Proxy
    Increase revenue on legacy messaging services
- - 5G readiness
    Balance 5G's lmitless possibilities with a smooth transition from legacy technology
    
    5G Messaging
    Make the most of the bright future of SMS in 5G
    
    Policy & Charging
    Define any mobile offering with powerful tools. Do it fast to stand out from the crowd
    
    Value Added Services Platform
    Subscriber call connection and messaging taken care of. Your revenue and TCO optimized
- - SMS Transformation
    Simplify your SMS business, boost A2P messaging revenue, and cut costs with one unique solution
    
    SMS Transformation
    Maximize the value of your SMS business
  - Featured Resources
    - White paper
      
      Signaling threats: SS7 and beyond
      
      Get the white paper
- - Wholesale Voice
    Easily transition to the most directly connected and diverse all-IP network with one trusted partner offering flexible connectivity and voice solutions.
    
    PSTN Connectivity
    PSTN connectivity gives you all IP access to a single, deeply interconnected network
    
    Decommission TDM
    Replace your outdated TDM infrastructure with all—IP access
    
    IPES support
    Enjoy an all-IP connection with IPES carrier benefits
    
    Cloud Switching
    Upgrade your aging communications infrastructure with a comprehensive voice solution
Developers
Insights
- By Type
  - Blog
    Your go-to resource for expert tips and insights on mobile engagement
    
    Culture & Technology
  - Customer stories
    Discover how we help brands increase customer engagement, satisfaction, and growth
  - Resources
    Our latest research, reports, white papers, and guides are all here for you to enjoy and learn
    
    CX Education podcast
  - Events & Webinars
    Take a look at the events we'll be attending and hosting over the next few months
    
    On-demand and past events
  - News
    Press coverage and company announcements
- Column
  - By Topic
    - Fraud in business messaging
    - Omnichannel
  - Featured Resources
    - Report
      
      Gartner® names Sinch a Magic Quadrant™ Leader for CPaaS
      
      Get the report
    - Excerpt
      
      Sinch named a Leader in IDC MarketScape 2023
      
      Get the excerpt

CTA

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Breadcrumb

Sinch
Insights from Sinch
Resources
US SMS compliance guide

Main navigation

Products
- - Column
    - Channels
      - SMS
      - MMS
      - RCS
      - WhatsApp
      - Facebook Messenger
      - Instagram
      - All Channels
    - Column
      - Connect channels with Conversation API
        Keep things simple and connect multiple channels with one integration for an omnichannel and conversational messaging experience
      - Standalone Messaging APIs
        Take a look at our standalone, secure cloud-based messaging APIs for single channel needs
      - SMS Verification
        Secure your customer journey while increasing conversions and reducing churn
  - Use cases
    - Message Across all Channels
      All-in-one messaging across every mobile channel
    - Engage with Customers
      Start a meaningful, real-time conversation with customers today
    - Boost Customer Support and Satisfaction
      Transform customer service with relationship-building conversations
- - Voice & Video
    - Voice Services
      Make calls directly connected to the largest tier 1 network
    - Toll-Free Voice
      Give callers an easy and reliable way to reach you
    - SIP Trunking
      Call local, long distance or toll-free with the highest quality service
    - Operator Connect for Microsoft Teams
      Enable Microsoft Teams calling with Operator Connect
      
      Direct Routing for Microsoft Teams
    - Unified Communications
      Get all the tools you need in one place with our comprehensive cloud communications platform
      
      Private Label Cloud Communications
    - Emergency Services
      Promote safety and security with innovative 911 technology. Find out how our solutions let you help callers quickly reach 911
      E911 Next Generation 911
    - Number Masking
      Anonymize voice calls to protect you and your customers while keeping personal numbers safe
    - Cloud Connect for Webex Calling
      Transform the audio precision of your Webex meetings
    - STIR/SHAKEN
      Fight back against robocalls, increase call answer rates, and build consumers' trust
    - In-App Video Calling
      Build a seamless, customizable in-app video experience into your mobile and web app
    - In-App Voice Calling
      Integrate voice easily into your app for smooth real-time communication globally
    - Voice API
      Design the exact voice call flow you need with flexible and scalable solutions
  - Use cases
    - Scale Your Voice Services
      Get a complete voice solution from a single provider by setting up any call type your business needs to connect
    - Future-Proof Access to Emergency Services
      Help callers reach 911 and empower first responders to assist distressed callers
    - Implement Anonymous Calling
      Ensure privacy between end users and avoid revenue leakage through number masking or in-app calling
- - Email
    - Mailgun
      Email API – Send, receive, and track emails effortlessly with an industry-leading Email Service Provider
    - Mailjet
      Whitelabel email marketing solution--Accelerate your go-to-market with Mailjet Embedded
    - Email on Acid
      Email on Acid has the tools you need to press send with greater confidence
    - InboxReady
      Improve your inbox placement and connect with real people – your customers
  - Use cases
    - Ensure Deliverability
      Our powerful Email API scales to send billions of emails and delivers them quickly
    - Rendering QA and multi-platform preview
      Ensure your message gets seen as intended - no matter the client
  - Featured Resources
    - Report
      
      Telco transformed
      
      Get the report
    - Guide
      
      The actionable guide to increasing customer loyalty with mobile messaging
      
      Get the guide
- - Connectivity
    - Numbers
      Find a number that meets all your business needs
      
      Toll Free 10DLC Short Codes
    - Number Porting
      Keep business continuity with successful and painless number porting
    - Number Lookup
      Engage the right customers, on the right numbers
    - Voice IP Exchange
      Enhancing your connectivity with rich voice and video
    - PSTN Connect
      Gain nationwide IP access with interconnectivity to a single network
    - Fax API
      Securely send and receive faxes at scale
      
      Cloud Business Fax
  - Use cases
    - Expand Your Global Presence
      Add international and toll-free numbers for inbound calling, 2-way calling and emergency assistance
    - Text Message Enable Numbers
      Send SMS and MMS messages from any local 10-digit or toll-free number with P2P capabilities rivaling wireless carriers
    - Support Your Business Growth
      Tie numbers to voice service, call center, messaging, IoT solutions, faxing and emergency services
- - Verification
    - Verification API
      Multi-factor authentication for secure signups and logins
    - Flash Call Verification
      The faster, more cost-efficient alternative to traditional SMS verification
    - SMS Verification
      Simple, secure user authentication powered by text messaging
    - Data Verification
      No PIN, zero-click verification with proven security
    - Phone Call Verification
      Universal verification for mobile and landline numbers
  - Use cases
    - Provide Security and Trust
      Enhance app security and protect customers' shared data with scalable multi-factor authentication solutions
    - Improve Acquisition
      Increase conversion rates in your signup flow with flexible and reliable phone number verification
    - Ensure Global Reach
      Use phone numbers as a global user identity with SIM-based verification methods
  - Featured Resources
    - White paper
      
      Two-factor authentication: Why SMS is here to stay
      
      Get the white paper
    - White paper
      
      Building a smooth, secure experience with SMS-based 2FA
      
      Get the white paper
- - Applications
    - MessageMedia
      Easy-to-use messaging platform that integrates with your existing tech stack to engage your customers on the channel of their choice.
    - Sinch Engage
      Sinch Engage Software-as-a-service solution to use instant messengers for marketing, support and sales in one platform
    - Chatlayer
      Conversational AI chatbot and voicebot platform
    - Contact Pro
      Voice, video, chat, messaging, and email - all in one cloud contact center solution
    - Mobility Clients & SDKs
      Build your own customized, feature-rich mobility solution with a easy to configure cloud softphone and SDK
  - Use cases
    - Conversational Marketing
      Engage customers with meaningful, real-time conversations
    - Conversational Customer Service
      Transform customer service with relationship-building conversations
    - Conversational Commerce
      Automate the customer journey and provide unified customer experience
Solutions
- Business
  - Enterprise
    Obtain all your cloud communications solutions through one provider
  - Communication Service Providers
    Accelerate your innovation and maintain your competitive edge with our comprehensive communication solutions
  - Operators
    Optimize your operations and remove the headache of network management
- By Department
  - Marketing
    Wow your customers effortlessly with personalized messaging throughout the customer journey
  - Operations
    Boost operational efficiency and customer satisfaction with timely, relevant notifications
  - Customer Service
    Engage customers on their terms, on their channels. Our cloud-based communications platform brings your legacy support platform into the digital age!
- By Industry
Partners
- column
  - Strategic Partner
    Optimize your partnership solutions and messaging channels with conversational technology, AI automation, and SaaS applications.
    Become a partner Find a partner
  - Integrations & Connectors
    Seamlessly integrate our solutions with your favorite existing tools
- column
  - Channel Partner
    Empower your customers and boost revenue selling CPaaS solutions as an agent — voice, messaging, email, and fax for enterprise and wholesale.
  - Private Label Partner
    Exceed customer expectations with the best private label cloud solution and feel supported every step of the way.
Telco
- - Enterprise revenue maximization
    Use the range of your network assets to create new services for enterprise
    
    A2P Monetization
    Major revenue gains are waiting for you with SMS in the enterprise space
    
    SMS Firewall
    Boost security and monetize enterprise messaging
    
    Signaling Firewall
    Strengthen your network and protect your subscribers
- - Intelligent interconnect
    Secure profitability with essential interconnect services while moving to the all IP-world of your future network
    
    SMS for Operators
    Global SMS interconnectivity made easy
    
    SMS Select
    Safeguard SMS monetization and tighten up security
    
    MMS for Operators
    Global MMS interconnectivity made easy
    
    Messaging Proxy
    Increase revenue on legacy messaging services
- - 5G readiness
    Balance 5G's lmitless possibilities with a smooth transition from legacy technology
    
    5G Messaging
    Make the most of the bright future of SMS in 5G
    
    Policy & Charging
    Define any mobile offering with powerful tools. Do it fast to stand out from the crowd
    
    Value Added Services Platform
    Subscriber call connection and messaging taken care of. Your revenue and TCO optimized
- - SMS Transformation
    Simplify your SMS business, boost A2P messaging revenue, and cut costs with one unique solution
    
    SMS Transformation
    Maximize the value of your SMS business
  - Featured Resources
    - White paper
      
      Signaling threats: SS7 and beyond
      
      Get the white paper
- - Wholesale Voice
    Easily transition to the most directly connected and diverse all-IP network with one trusted partner offering flexible connectivity and voice solutions.
    
    PSTN Connectivity
    PSTN connectivity gives you all IP access to a single, deeply interconnected network
    
    Decommission TDM
    Replace your outdated TDM infrastructure with all—IP access
    
    IPES support
    Enjoy an all-IP connection with IPES carrier benefits
    
    Cloud Switching
    Upgrade your aging communications infrastructure with a comprehensive voice solution
Developers
Insights
- By Type
  - Blog
    Your go-to resource for expert tips and insights on mobile engagement
    
    Culture & Technology
  - Customer stories
    Discover how we help brands increase customer engagement, satisfaction, and growth
  - Resources
    Our latest research, reports, white papers, and guides are all here for you to enjoy and learn
    
    CX Education podcast
  - Events & Webinars
    Take a look at the events we'll be attending and hosting over the next few months
    
    On-demand and past events
  - News
    Press coverage and company announcements
- Column
  - By Topic
    - Fraud in business messaging
    - Omnichannel
  - Featured Resources
    - Report
      
      Gartner® names Sinch a Magic Quadrant™ Leader for CPaaS
      
      Get the report
    - Excerpt
      
      Sinch named a Leader in IDC MarketScape 2023
      
      Get the excerpt

Search

Utility

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Support
- About Us
- Why Sinch?
- Careers
- News
- Events
- Investors
- Customer Dashboard
- View all portals

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Guide

US SMS compliance guide

Steer clear of legal trouble when kick-starting your SMS strategy – download our free guide to learn everything about US text message privacy laws!

usSMS

In this guide, you'll learn how to keep your business compliant with TCPA and CTIA guidelines, including:

CTIA and TCPA compliance guidelines on consent and best practices

SMS opt-in/SMS opt-out

SHAFT content

Carrier expectations

A2P vs P2P messaging

Number types

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