Labels:text | screenshot | diagram | yellow | circle OCR: Frame reiss tor Us sites 5. Figure 2. Sandwell Engineering's frame relay WAN connections are provided by IBM's Global Net- work Services. E-mail addressed to locations outside of Sandwell's WAN passes through firewalls provided by IBM, and over the Internet to The Electric Mail Co.'s site, which hosts Sandwell's POP3- based messaging system.
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