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systems:phones [2012/10/25 21:32] – created superwizardsystems:phones [2015/10/16 23:21] (current) – [carrying LAN and telephony on the same cables] superwizard
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 +====== Fax Line with US Robotics Modem ======
 +
 +  Phone Line ===> US Robotics ===> Brother Fax
 +  Configure Brother Fax  - No to easy receive - answer on ring 4
 +  Configure US Robotics Software - in my case MS Fax on Server 2003 to answer on ring 1
 +  
 +==== What is the Easy Receive setting? ====
 +
 +From: http://welcome.solutions.brother.com/BSC/public/eu/gb/en/faq/faq/000000/002400/000060/faq002460_000.html?reg=eu&c=gb&lang=en&prod=mfc9440cn_all
 +
 +    OFF means you will have to activate the Brother machine yourself by lifting the handset of an extension telephone on the same line 
 +    as your Brother machine, then doing one of the following:
 +        If you are at the Brother machine, press the Mono Start or Colour Start key.
 +        If you are not at the Brother machine, press *51  
 +        
 +        
 +====== carrying LAN and telephony on the same cables ======
 +
 +From: http://www.zytrax.com/tech/layer_1/cables/mixed.html
 +
 +<code>
 +We get a lot of mail about carrying LAN and telephony on the same cables. This page is designed to give you 
 +some information to let YOU decide whether you want to do this or not. It is not easy and you should be very
 +comfortable with all the information here before you set out to destroy your premises wiring!
 +
 +Pin No. strand color Name
 +1 white and orange LAN (TX_D1+)
 +2 orange LAN (TX_D1-)
 +3 white and green LAN (RX_D2+)
 +4 blue Telephone 1
 +5 white and blue Telephone 1
 +6 green LAN (RX_D2-)
 +7 white and brown Telephone 2
 +8 brown Telephone 2
 +
 +</code>
 +
 +====== Telephone Line Parity ======
 +
 +From: http://www.westernet.net/Help/RJ45.htm
 +
 +    * Pair 1 
 +      * White with Blue
 +        * Tip
 +      * Blue
 +        * Ring
 +
 +From: http://en.wikipedia.org/wiki/Tip_and_ring
 +
 +    Tip has a potential of 0 volts with respect to ground, while the battery side carries a DC potential of −48V
 +    when in the on-hook (idle) state (nominally −50 volts in the UK).
 +
 +From: http://wiki.answers.com/Q/What_is_Phone_line_polarity
 +
 +    The red wire is the "ring" or negative wire. The green wire is the "tip" or positive wire.
 +    
 +From: http://en.wikipedia.org/wiki/Tip_and_ring#Polarity
 +
 +    tip wire coded green and ring coded red.    
 +    
 +From: http://www.lanshack.com/wire_phone_jack.aspx    
 +    
 +    Nice Diagram
 +    
 +From: http://www.eeweb.com/blog/extreme_circuits/phone-line-polarity-checker
 +    
 +    Because modern phones rectify the DC voltage from the telephone lines before regulating it and 
 +    because the ring and voice signals are AC, for voice communications the polarity doesn’t really matter.
 +    
 +=== Telephone RJ11 Wiring Reference ===
 +
 +From: http://wiki.robotz.com/index.php/Telephone_RJ11_Wiring_Reference
 +
 +<code>
 +
 +</code>
 +
 +{{http://wiki.robotz.com/images/2/26/Wiki_telephony01.jpg}}
 +
 +
 +
 +{{http://wiki.robotz.com/images/9/92/Ph_eight-strand.png}}
 +====== Smartphones: Exchange settings for iPhones, Droids and other devices ======
 +
 http://helpdesk.princeton.edu/kb/display.plx?ID=1019 http://helpdesk.princeton.edu/kb/display.plx?ID=1019
 +
 +   Exchange ActiveSync
 +
 +
 +====== How to update a Polycom ip phone Firmware via FTP server? ======
 +
 +
 +http://voipsetup.100webspace.net/ipphone.php?afiles=updatePolycomFirmware.php
systems/phones.1351200753.txt.gz · Last modified: by superwizard