https://api.tilbot.com/send.php?
recipient=[phone number]&
apikey=[your  apikey]&
text=[text to send]

https://api.tilbot.com/send.php?
recipient=[phone number]&
apikey=[your apikey]&
text=[text to send]&
file=[url of image]

https://api.tilbot.com/send.php?
recipient=[phone number]&
apikey=[your apikey]&
text=[text to send]&
file=[url of image]

https://api.tilbot.com/send.php?recipient=[phone number]&
apikey=[your apikey]&
document=[url of pdf file]