Guerrilla VoIP

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Revision as of 22:32, 3 July 2013 by Xopr (talk | contribs) (added Fritz!box voltage tests)
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Project: Guerrilla VoIP
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State Active
Members xopr
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Description low cost communication node
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synopsis

Need to fill this with text when I have time..

Basic ingredients:

  • sturdy compact waterproof (ammo) box
  • battery, initially 7Ah (ordered)
  • Fritz!Box router (NAT, FxS, FxO, DECT)
  • Raspberry Pi running FreeSWITCH and DHCP
  • Raspberry Pi running FreeSWITCH and TFTP
  • (PoE) ethernet switch (ordered)
  • Efficient power converter(s)

prototyping

Cisco CP7940 running on a drill battery pack, shows 0.36A at approximately 12V

Tested the following items:

  • Two Raspberry Pis on a drill battery pack (step-down)
    • uses 0.33A at approximately 12V
  • Cisco CP7940 on a drill battery pack
    • uses something between 0.36A and 0.45A at approximately 12V
  • Fritz!box has a switching regulator to 5V tested between 5.5V and 15V (drops off at 5.3V idle and elca at power supply segment is rated 16V)
    • without WiFi, it peaks at 0.44A (12V), and idles at about 0.34A-0.38, which the webservice is saying 41%-43%, which means it would top at about 0.88A.
    • With 15V power it idles at about 0.25A


Still to test/measure:

  • PoE switch at 48v
  • whole set with battery and battery charger