OnlyTG Echo provides the function to upgrade your channel to Pro Channel. This will consume your Pro Communities slots and unlock more advanced features. Firstly, you need to create a new bot via @botfather and send its token to the OnlyTG Echo. After that, you will get a chatbot that can relay messages between you and your contacts. Here is the link on how to build a new bot: https://onlytg.com/how-to-create-a-new-bot-on-telegram-without-code-skills/
Video Tutorial
step 1
Send the /start command to your Bot, then click Channel Setting.
Here you can see how many Pro Communities slots you have available to allocate. If you don’t have enough slots, click here to head to the subscription page and upgrade your account plan.
On the subscription page, any plans with Pro Com in the Communities section will increase your slot.
step 2
Select your channel. This channel access is Free.
Click Switch to Pro.
You’ll get a reminder of your remaining Pro Communities slots here, and you can also click the button to quickly go to the subscription page.
When you have enough Pro Communities slots, just click Yes.
Your channel is now successfully upgraded access to Pro.
Additionally, you can upgrade your channel in OnlyTG Console. (app.onlytg.io)
Click Channel in the OnlyTG Console.
Check the Allocated Pro Community Slots.
Click Switch to Pro from the More menu.
Click Yes.
Your channel has successfully upgraded to a Pro channel.
Create Your Own Telegram Bot with OnlyTG Echo!
OnlyTG Echo helps you build your own Telegram bot. Power up your connection on Telegram with strong features!
OnlyTG Echo Bot: https://t.me/echoonbot
Official Telegram Channel: https://t.me/onlytg