Labels:text | screenshot | map | yellow | font | diagram OCR: Save the Children headquarters (Westport, CT) Washington, D.C. office Microsoft Remote Authentication Dial-In Exchange server User Service (RADIUS) Microsoft User's Exchange mailbox server Bridgeport, CT POP EQUANT POP on local network EQUANT customer prem 505 Modem poo Malawi, Africa Laptop equipped with modem and EQUANT dial-up number Around the World. The pervasiveness of EQUANT's private network in Third World countries lets Save the Children's most-traveled workers dial up e-mail over PSTN lines in most of the 44 countries where the organization provides relief. The Washington, D.C ., staff's e-mail, like all the EQUANT traffic, must first go through Remote Authentication Dial-In User Service (RADIUS) authentication in the Westport, CT, headquarters. Because the Washington staff's mailboxes reside in D.C ., leased lines are used to connect the Microsoft Exchange servers in both offices.