The telephone number to send the text message from. Must be a number you own. If unspecified, a number corresponding to the recipient's country with available capacity (<500 messages sent in 24h) will be automatically chosen.
optional, default value is
optional, current value set to
The telephone number to send the text message to. Please be sure to include the country code (i.e. "1" for US / CA).
The contents of the text message you would like to send.