FAQ

FAQ

Toll Free Numbers
SMS.to licensed toll free numbers from our partner networks and carriers. We connect these toll free numbers to our platform. When a customer reach out to o...
Do You Support Unicode
Yes, SMS.to supports Unicode characters. However, using unicode content can impact the character limit of each SMS part as described in How Many Characters ...
Can I Request for Refund
Upon signing up with SMS.to, you will be provided with trial credits that you can use to send a test SMS. This will allow you to evaluate our platform if it...
International Sender ID regulations and requirements (list of countries)
SMS.to follows local regulations for Sender ID and content requirements including URL/links.  Some countries require pre-registration of Sender ID and s...
How to receive incoming SMS from a rented number (2way)
If you log in to sms.to and then go to https://sms.to/app#/settings/optout-management you can fill in your callback URL here:   (Sorry, the title ...
Invalid numbers & Rejected messages
As a free service to our customers and to prevent them from unnecessary cost, we check all phone numbers used on SMS.to to see whether they are valid or not...
My messages are not delivered & how to escalate to SMS.to support
Sometimes messages are not delivered. The possible reasons for this are theoretically endless but most of them can be eliminated by us after proper investig...
How to check logs on SMS.to & find the message ID
Please visit your Message Log on SMS.to Please use the above filters to find the message(s) in question and use the spy glass button to start the search ...
Does our SMS.to API generate OTP codes?
The short answer to this question would be no.  API keys generated by our platform can be used to integrate our services into your application.  It ...
C# Implementation
Currently, our API implementation supports a variety of languages. See the link below. https://docs.sms.to/api/?shell#sms-messaging However, C# is a la...