GoogleVoice numbers support with Clickatell & TextAnywhere

When I send sms text message to a google voice nu开发者_如何学Gomber from Clickatell or TextAnywhere, I get a failure alert (in the reports) and the message is not sent.

Anybody had experience with that?

Google Voice doesn't support international SMSs, as per their documentation

Some providers, such as BulkSMS have had some success in getting message delivery to GV but the ability of the recipient to reply is not there.

Disclaimer: I work for BulkSMS