Before you can receive SMS messages, please ensure you've setup a virtual mobile number, per Using Virtual Mobile Numbers
You can use your SMS service through either https://portal.upstreamtech.io/ or by using your email client.
Login to https://my.portal.upstreamtech.io/ and select SMS Messaging from the menu.
Your available SMS inboxes will be presented, simply select the one associated with the phone number you're sending or receiving on.
If you've previously messaged the phone number, locate their conversation in the inbox, or select New Conversation
In the conversation pane, if it's a new message, enter the destination mobile number at the top of the conversation.
Type out the message you'd like to send, then either press Enter or click the Send icon. The counter above the message entry box will show how many individual SMS's will make up your message.
The conversation will show your sent messages, along with any replies from the other person.
Adding Your Email to the SMS Service
Before you can use Email to SMS or receive email notifications of new messages, your email address must be authorised on an SMS Inbox.
To do so, login to https://portal.upstreamtech.io/ and select SMS Messaging. Locate the SMS inbox your email should be added to, then click the Cog
Click the Add Email button, then enter your email address and click Save. You will be sent a verification email containing a confirmation button. Once confirmed, you will be able to send SMS messages from your Email client.
To enable the receipt of new messages by email, click the Cog again, then show Advanced Options for your email address. Enable the Receive Emails toggle to have any new messages delivered to your email.
Sending a New MessageTo send an SMS using your email client (for example Microsoft Outlook or Gmail), create a new email and set the to field to MobileNumber@sms.voipportal.com.au, where MobileNumber is the recipient's mobile number.To send an SMS using your email client (for example Microsoft Outlook or Gmail), create a new email and set the to field to MobileNumber@SMSservice, where MobileNumber is the recipient's mobile number and SMSservice is the URL for your SMS service.
Enter your message, then click send.
Replying to a Message
If you've receive an SMS message, and your email address has been setup to receive notifications, you can reply directly to the notification and your response will be sent to the recipient's mobile.
When replying, once you've completed your reply, add two blank lines by pressing enter 3 times at the end of your message then click send. These blank lines signal to the server where your message ends, and anything following it, including email signatures, will be discarded.