Today was a very good day for our Tetra pilot in Green Bay.
1) We resolved the telephone interface problem with the Tetra system.
Put simply, the testing phones I was using had extension numbers 800 and
801, and the Asterisk interface was told to send calls beginning with an
82xx or 83xx to the Tetra computer. I fixed the problem by changing the
extension numbers to 400 and 401, and the problem vaporized. We now
have bi-directional calling internally available. I will be working on
a full-time POTS connection in the near future, but for now, people on
the radio can call the people in the office, and the office can call
people on the radio. The audio levels were clean with outstanding
clarity! Tomorrow, we will work on a video demonstration of our success.
2) We setup and activated the Dispatcher station on the Tetra network.
Working with a software vendor, we obtained trial copies of a Dispatcher
solution that works over an IP network to interface with Tetra. Using a
headphone and microphone solution, we can now make "calls" onto the
radio network, and interact with radios in the field. We performed full
duplex (like a normal telephone) and half-duplex (like walkie talkie)
calls with the system, along with sending SDS (text) messages through
the interface. The Dispatcher logs those messages.
Take care, and I'll write more soon.
Christian
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