[Asterisk-Users] How to make/recieve call using asterisk whenthereis a power failure?

[Todd Lieberman]

Have a look at http://www.twacomm.com/Catalog/Model_PF-6A.htm

As for T1/E1, you have a big business, get a decent UPS and a generator.


  -----Original Message-----
  From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of Duane Cox
  Sent: Thursday, November 25, 2004 10:18 AM
  To: Asterisk Users Mailing List - Non-Commercial Discussion
  Subject: Re: [Asterisk-Users] How to make/recieve call using asterisk
whenthereis a power failure?


  We use several Dell 2650 servers.  Order them with the dual DC power
supply option.
  Buy a row of -48 batteries and a -48 power source, your servers will stay
up for hours.


    ----- Original Message -----
    From: TinKoon
    To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
    Sent: Thursday, November 25, 2004 3:56 AM
    Subject: [Asterisk-Users] How to make/recieve call using asterisk when
thereis a power failure?


    Hi,



    I am supportive of the asterisk, but I have some concern, though the
concern also applies to traditional pbx as well. Hope someone can shine some
light into it. Thanks.



    During a power failure situation, analog pstn lines that connect
directly to the analog phones will most likely still be able to make and
receive calls.



    However, for the Asterisk implementation, unless you have a huge ups,
you will not be able to make and receive any call during power failure,
since there will be no power to the Asterisk server. And since all the
incoming lines, be it analog lines or T1/E1 are connected to the Asterisk,
these lines wont be able to function at all.



    In some situations, even though you may have a ups for the Asterisk,
network equipment, channel banks, etc, but your ATA, IP phones which located
near to your users and probably not connected to the UPS, so these devices
wont be able to function.



    And even if you have a ups, after an hour or two, your uos will drain
out, so how?



    Though we can have few analog pstn lines as standby, but these lines are
mostly use for making outgoing calls rather than receiving incoming calls.
For a prolong power failure situation, these lines cant really help much, so
businesses will be seriously affected. It is possible to contact the telco
to re-direct the incoming calls to the standby analog lines, however, it
will generally take couple of hours for the telco to make the switch and
very likely there will be a fee involve.



    I read from this forum that many asterisk implementations had been
carried out, I wonder how these implementation take care of the power
failure situation? Can someone share the views and implementations?











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