Required Access: Yeastar Portal, Voxtelesys Portal
Disclaimer: Please open a Support Ticket in the Voxtelesys Portal to update Voxtelesys's SMS settings to Yeastar’s requirements.
Table of Contents:
Last Updated: 4/2/2026

Log in to Yeastar.
Navigate to the "Messaging", and select "Message Channels" from the dropdown.

Click the "+Add" button to create a messaging channel.
To ensure SMS works correctly, please configure the following required settings under "Authentication":

Log into the Voxtelesys Portal.
Navigate to "Messaging Applications" which is located under the "Messaging" drop-down in the "Channels" category.

Click on the blue plus "+" button to create the messaging application.

Enter the following:

Navigate back to the Yeastar Portal and copy the the Webhook URL.

Paste the Webhook URL into the "MO Webhook" field and click "Confirm".

Navigate back to the Yeastar Portal and switch to "Messaging Settings".
From here, click the "+ Add" button to assign numbers to the channel.

To assign a number to a channel, enter the number in E164 format and select the Destination for Inbound Messaging.
Two Destinations are available:

If Extension is selected, the assigned extensions can receive SMS notifications sent to that number and send outbound messages from it.
Under "Extensions Allowed to Create Messaging Sessions", select the extensions that should be allowed to start messaging sessions for that number. Only the selected extensions will be able to initiate sessions.

If Message Queue is selected, incoming messages are placed into the selected queue and can be picked up manually or automatically by assigned extensions.
A message queue must be created before it can be selected. For setup instructions, refer Step 6 of this tutorial.
Once Authentication and Message settings are configured, click "Save".
After setting up the Yeastar Messaging Channel and creating the Messaging Application in the Voxtelsys Portal, please submit a Support Ticket through the Voxtelsys Portal to complete the activation process.

To create a message queue, open the messaging drop-down and select "Message Queue".
Click the "+Add" button to create a new Queue.
Configure the Message Queue:
Once configured click "Save".

Once a Message Channel is configured, Message Campaigns can be created.
To create a Message Campaign, navigate to "Message Campaign" in the Messaging dropdown.
Click on the "+Add" button to create a new Campaign.
Users can send multiple messages at a single time with Yeastar Campaigns.
To configure the campaign, Enter the following information:
Once completed click "Save".

To start a new session go to the "Chat" tab in Yeastar and toggle to "External".

To start a new session click the plus "+".

Enter the session type, sender, and recipient and click "Create".