Welcome
Login
Sign up
Home
Solutions
Login
Enter your search term here...
Search
SMS.to
Solution home
SMS.to
FAQ
21
SMS.to Sign-up Process
What kind of SMS Can I Send in the Platform
How Many Characters Can I Send per SMS
Payment Options
Long Codes vs. Short Codes
How Many SMS Can be Delivered at What Speed
Do you charge for non-delivered SMS
What is a Sender ID?
SMS API
Service Restrictions on SMS Content
See all 21 articles
Getting started & How to guides
29
Getting started with SMS.to
How to Send SMS to a Single Number
How to Send SMS to a List of Contacts
How to Create a Contact
How to Import a Contact List
How to Check SMS Logs & Status
How to add funds & make a payment
How to use HLR lookup for number verification
How to enable Transcoding
How to Use a Template
See all 29 articles
Contacts, Lists & Un-/Subscription
7
General information
Importing contacts
Opt-out & Opt-in: subscribe or un-subscribe contacts
Sending to contact lists
Notifications about unsubscribed Numbers
Locating phone numbers in contact lists
Fully integrated opt-out/in management
Knowledge Base
4
Failed to Process Payment
When & How to split and send SMS via API
Restricting your account to prevent messages going out towards specific countries
How to convert UNIX Timestamp to Date in Excel
Integration of SMSto with 3rd party software
2
C# (C Sharp) Sample Code - API
ManyChat
Webhooks & callbacks
3
Outbound message status callbacks/webhooks
Inbound message callbacks/webhooks
Opt-out callbacks/webhooks
