TM4B Bulk SMS Gateway

Inbound Number Support

To receive SMS from mobile users in Slovakia, you can use our Slovak virtual mobile numbers.

You can lease a dedicated Slovak virtual number or, through keywords, use our shared virtual mobile number +421 (0) 90 20 28 9 20.

Please note that our Slovak virtual numbers are intended to receive SMS from mobile users in Slovakia. There is a high chance that they will not receive verification SMS or SMS sent from other countries.

Receiving Options

At a basic level, all of the SMS that you receive will be delivered to your SMS Inbox and can be forwarded to you by email. For more advanced handling, we can forward your SMS to your server through a webhook.


I was suspicious at first because TM4B did exactly what we needed and didn’t ask for a setup fee.

They offer every kind of exploitation and, with the provided tracing service, we can know exactly when the message was delivered. We also appreciate that messages send long time ago are still traceable.

We integrated and sent our first SMS within 30 minutes and, since then, we haven't received one single complain about it!

The few times I contacted TM4B's support service, my question was answered the same day.

The great thing is that, after the setup, you forget about it because it works exactly like it should.

We are really happy that we have chosen TM4B.

Daniel Schott Developer, BGS