FAQ | SMS

Utilize tyntec’s FAQs to help solve any issues you may have. Additionally, learn about cloud communications, CPaaS, SMS for business, authentication, and more. If any questions arise while reading, don’t hesitate to contact us.

Why Can’t SMS Recipients Respond to Messages Sent Using an Alphanumeric Sender ID?

FAQs

SMS

Getting Started

Overview

How Can I Create My tyntec SMS Account?

Where Can I Find the Technical Documentation for SMS One-Way?

What Is the Difference Between the Restful API and Smpp / Smpp Over SSL?

What Number Types Can I Use As a Sender ID for My SMS One-Way Account?

Does tyntec Provide Global Coverage for Their Messaging Services?

How Soon Can I Start Using the New SMS One-Way Account?

How Do I Send Bulk SMS Via tyntec?

What Type of Connections Does tyntec Support for SMPP?

Does tyntec Support SMS Premium Rate Numbers?

How Can I Schedule Business SMS Messages?

What Is a ‘source IP Address’?

Can I Add Multiple ‘source IP Address’?

What Is the ‘Respond Back Url’?

What Does the Acknowledgement Receipt Look Like?

Why Can’t I See Any Prices on the ‘pricing & Coverage’ Page?

SMS Delivery

Overview

How Can I Troubleshoot SMS Delivery?

How Does tyntec Track and Resolve SMS Delivery Issues?

What Happens If You Send an SMS Message to a Temporarily Absent Number?

Is It Possible to Avoid SMS Messages Delivered Multiple Times?

Does tyntec Deliver SMS Messages to Ported Numbers?

Does tyntec Perform Number Lookup (or HLR Check) Before Sending a Message? If Yes, Do You Cache the Results?

What Does “Delivered Upstream” Mean?

SMS Performance

Overview

How Quickly Are Messages Delivered Via tyntec’s SMS Gateway?

What Is the Throughput Limit to Send SMS Messages?

SMS Features

Overview

How Does a Mobile Number Need to Be Formatted for Successful SMS Delivery?

What Languages Does tyntec Support in SMS Messages?

Does tyntec Support Accented and Foreign Language Characters for Business SMS Sending?

Which Special Characters Count As Two Characters in an SMS?

Can I Send an SMS That Is Longer Than 160 Characters?

Can tyntec Deliver A2P SMS Solutions to Roaming Phone Numbers?

Will My SMS Messages Arrive in Order in Case of Concatenated SMS?

Why Do Concatenated Messages Receive Dlrs (delivery Receipts) With Extra Latency?

What Does tyntec’s Retry Scheme for SMS Delivery Look Like?

Can I Receive SMS Messages From My Customers?

How Long Does tyntec Retry Inbound SMS and Delivery Receipts?

Troubleshooting

Overview

What Are the Reasons for Message Failure?

Why Can’t SMS Recipients Respond to Messages Sent Using an Alphanumeric Sender ID?

Why can’t SMS recipients respond to messages sent using an alphanumeric sender ID?

For a phone to send a response to a message, it needs a mobile number to respond to. When you send out messages with an alphanumeric sender ID, the receiving phone does not have a mobile number to reply to, and therefore it cannot establish two-way SMS based on an alphanumeric senderID.