deltathree's SMS CallBack solution allows mobile phone users to initiate calls to anywhere worldwide using SMS messages. Your customers simply send an SMS message to an access telephone number, and deltathree calls back the mobile phone and chosen destination number to connect the call. A computer or Internet is not required to place premium quality, low cost international calls using deltathree VoIP service.
To view deltathree's SMS CallBack access number, please click on the instructions link.