Satellite Phones Relays If other phone systems are Rare Always on Expensive transmissions via down, can only Global operation Rare satellite. communicate locally with other satellite phones Requires visibility to sky or building with compatible antenna Computer Communications Very common Transmits data May work when other May work when Equipment may not via the Internet or systems are down systems down be mobile by runners Provides electronic May require USB drives or record Internet connectivity other media such as CDs Versatile network Requires specific connections hardware Relatively secure Expensive Large amounts of Requires information source information Thumb drives and discs do not require Internet Information redistribution
Satellite Phones Relays transmissions via satellite. If other phone systems are down, can only communicate locally with other satellite phones Rare Always on Global operation Expensive Rare Requires visibility to sky or building with compatible antenna Computer Communications Transmits data via the Internet or by runners USB drives or other media such as CDs May work when other systems are down Very common May work when systems down Provides electronic record Versatile network connections Relatively secure Large amounts of information information Thumb drives and discs do not require Internet Information redistribution Equipment may not be mobile May require Internet connectivity Requires specific hardware Expensive Requires source
CERT-Emergency-Communications-Module.docx