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  1. levskipetrov

    downgrade/upgrade - is it a dangerous and aggressive move?

    I recently worked on a 406 that was having trouble with a transfer issue. After several hours of troubleshooting I decided to do a downgrade/upgrade to ensure the previous upgrades were done in the correct sequence. In the middle of the downgrade the system locked up for about 3 hours...
  2. levskipetrov

    406 digital static on transfer

    I need a little help on a 406 I am troubleshooting. It has a 30 digital station expansion module, 16 port analog trunk module and the system itself. There are 9 POTS lines also. I am able to conference two trunk lines together, but when I try to transfer one trunk to another, I get this digital...
  3. levskipetrov

    Wifi antenna question

    I have a customer who needs a wireless connection to their LED sign across a small parking lot. Distance is about 150 feet with line of sight. The sign has two controller cards with onboard ethernet jacks, so I am planning to use a 4 port wifi router installed inside the sign case. I plan to use...

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