Dell PowerConnect W Clearpass 100 Software SMS over SMTP TechNote - Page 13

SMS over SMTP Version Troubleshooting SMTP If email itself does not seem to be working, please consult the documentation and troubleshooting for setting up a mail access. For SMS purposes, we highly suggest a true SMTP server over sendmail, as you will want to accept replies and detect failures. Country Codes Certain carriers are more open to whether or not the country code is allowed. For instance, T-Mobile North America will work with and without the '1'. However, AT&T must always have the 10-digit number by itself. If a 1 is included the transmission will fail. Email is asynchronous, thus the only means of detecting failed messages is to tend to the INBOX of the sending account. To make this easier on the end-users, each carrier can be configured to override the country code value. Select the carrier under SMS Services > SMTP Carriers and click Edit. You have the following options:  Use the visitors value  Always include the country code  Never include the country code CONFIDENTIAL 13