SMS can be easily sent using our API with full status reporting and the ability to configure sender details (e.g. to set a Carrier number as sender to enable a reply). For coverage please see 'SMS coverage'.
SMS sent is charged against prepaid accounts and the rates can be found on our non-call rate sheet.
USD and EUR accounts will be billed at a rate derived from this one that adjusts for foreign exchange movements in-line with our voice rates.