SMS Can be forwarded to Email, WebURL and another Phone Number.
Select Phone Number -> Select the Number -> Click on SMS
Check Email and Type the email you want to receive SMS on.
Click on Confirm and you will see the SMS Field updated with the email.
Replying to SMS :
To reply to any incoming SMS from your email you need to click the Reply option from email and it will automatically set the recipient address. Type the message you wish to send and click send