Path: Organization > Lookups > Messaging Services
If you use SMS text messaging to manually send text messages to your technicians' cell or pager numbers, enter the name of the Carrier and the Address for the service in this window. Mark the appropriate check box for Phone or Pager.
When the contents of the Cell Service or Pager Service field on the Technician / Identity Tab is populated, the selected service will send your manually entered messages for the Work Cell or Work Pager number shown on the Technician record.
To use, click the e-mail icon on windows that support sending an e-mail, and the TO: field on the Send E-mail popup shows the Technician's number followed by the carrier's address, for example, 9185552277@messaging.sprintpcs.com.