During and after the disaster event communication with responders is critical.
The standard modes of contact, landline and mobile phones, may be useless. Aerial wires strung from pole-to-pole may be broken; underground wires may be wet. Cell towers may be blown over or simply overloaded.
Text messaging via Blackberrys? There was a time when Blackberrys were new and there were relatively few users. Today, the device is increasingly popular so an overload similar to cellular may occur. Plus, as Blackberry users already discovered, there is a "single point of failure" which recently rendered some Blackberry features useless.
There are options.
Probably the easiest to use option is two-way radio.
One of the most common Business Continuity and Emergency Management radios the General Mobile Radio Services (GRMS) device.
GRMS units have ranges of up to 26 miles (depending on a number of factors) and are available from a number of sources. These multi-channel receiver/transmitters require that users be licensed in the U.S. by the Federal Communications Commission (FCC). Licensing is relatively easy and can be accomplished online. The license form is two pages of "fill in the blanks" and the FCC conveniently provides instructions at
http://www.fcc.gov/Forms/Form605/605.pdf.
As with all two-way radio equipment, the devices can be used in a relay arrangement, like a call tree. "A" is at the organization facility; "A" contacts "B" who is 15 miles away. "B" in turn contacts "C" who is 30 miles from the organization's facility but only 15 miles from "B."
GMRS also can be used with "real" relay equipment. A relay device, installed at the organization's facility, particularly in an optimum location, could allow people at near-maximum range on all sides to communicate with one another.
Problem: Even with multiple channel (frequency) selection, channels may become overloaded in some communities.
There is a caveat with the GMRS devices; FCC prohibits their use near the Canadian border.
The next option is the old stand-by, "CB" with Single Sideband (SSB). The Citizens Band (CB) SSB units can provide 40 channels and are available in desktop, mobile, and handheld configurations. Maximum legal power (in the U.S.) is 4 Watts.
Next up the scale are Very High Frequency (VHF) and Ultra High Frequency (UHF) radios. Like the GMRS, an FCC license is required. Prices climb for these units (compared to GMRS and CB devices), but there are a number of advantages including less traffic and handheld devices which meet military ruggedness specifications.
Finally, there are "Sat Phones," phones which bounce voice and data off satellites.
These phones, while expensive to own and use, can function anywhere a signal can be sent to/from an orbiting telecom sphere. They can be used for both voice and data transmission. Unlike two-way radios, satellite phones don't require an FCC license for the individual user.
Like cellular walkie-talkies, sat phones can fail at a number of points beyond the user's control.
A detailed look at satellite communications as a Business Continuity and Emergency Management tool is available from GVF and Futron Corporation at
http://www.futron.com/pdf/resource_center/white_papers/Futron-GVF-DisasterComm.pdf. The document promotes the association rather than individual sat com providers.
GVF (http://www.gvf.org/gvf/about/index.cfm) bills itself as "the Global VSAT Forum is an association of key companies involved in the business of delivering advanced digital fixed satellite systems and services to consumers, and commercial and government enterprises worldwide."