[155475] in North American Network Operators' Group
Re: voip network hopping
daemon@ATHENA.MIT.EDU (Andrew Latham)
Fri Aug 10 19:48:59 2012
In-Reply-To: <CAH_OBidztMi6oELbV-DfNqTu6QrcumhreZtyCaEcYKmc7pJYkw@mail.gmail.com>
Date: Fri, 10 Aug 2012 19:48:29 -0400
From: Andrew Latham <lathama@gmail.com>
To: shawn wilson <ag4ve.us@gmail.com>
Cc: North American Network Operators Group <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Fri, Aug 10, 2012 at 7:45 PM, shawn wilson <ag4ve.us@gmail.com> wrote:
> On Fri, Aug 10, 2012 at 3:28 PM, Andrew Latham <lathama@gmail.com> wrote:
>> On Fri, Aug 10, 2012 at 3:18 PM, shawn wilson <ag4ve.us@gmail.com> wrote:
>>> i'm curious if there is any spec in the voip protocol suite that
>>> allows one to maintain a call while changing networks?
>>>
>>> what i want to do is setup a softphone on an android phone. however,
>>> this won't work very well if i can't switch from wifi -> 3g -> wifi (i
>>> doubt wifi -> wifi is possible because of hardware limitations). my
>>> alternative is to get asterisk to put the call on hold and play an
>>> automated message if a reconnection (and unhold) takes >1 second. i
>>> would expect that ip telephony would allow for some type of hopping
>>> though, i just don't know what to google for?
>>
>> This functionality can be done in many ways. This is demonstrated in
>> the Asterisk SCF project during a demo, check youtube.
>>
>
> so, i see they made the asterisk server fail over by unplugging a node
> and that's cool but not what i need. what i want is a way to keep a
> connection with an asterisk server (or any other preferably free voip
> server) when one path fails. this wouldn't be an issue if i could
> garante a sip gateway at each ap (wifi or 3g).
>
> ... or did i miss something?
You missed everything
https://wiki.asterisk.org/wiki/display/TOP/Hello+World+-+Asterisk+SCF+Style
--
~ Andrew "lathama" Latham lathama@gmail.com http://lathama.net ~
