<div dir="ltr"><div class="gmail_msg">Keepalived + heartbeatd allows you to maintain a a floating IP between two machines. If those two machines had configs, internal state synced, and the IP is configured to float automatically between the two based on which is actively up, would it be possible to not drop a call should the active host go down. </div><br class="gmail_msg"><div class="gmail_quote gmail_msg"><div dir="ltr" class="gmail_msg">On Thu, Jan 12, 2017 at 12:21 PM A J Stiles <<a href="mailto:asterisk_list@earthshod.co.uk" class="gmail_msg" target="_blank">asterisk_list@earthshod.co.uk</a>> wrote:<br class="gmail_msg"></div><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Thursday 12 Jan 2017, Telium Technical Support wrote:<br class="gmail_msg">
> This was asked many years ago but I thought I would check to see if things<br class="gmail_msg">
> have changed. Is it possible to take over a call in progress - using a<br class="gmail_msg">
> replacement Asterisk server?<br class="gmail_msg">
><br class="gmail_msg">
> In other words, if 2 user agents are connected through an Asterisk PBX, and<br class="gmail_msg">
> I tracked the call ID, IP of each UA (and anything else needed), could I<br class="gmail_msg">
> remove the PBX and put a new one in its place (at the same IP address) and<br class="gmail_msg">
> resume the call? Somehow keeping the call up on the UA's and telling<br class="gmail_msg">
> Asterisk to just resume a call given specified parameters (so the UA's<br class="gmail_msg">
> wouldn't notice the change)?<br class="gmail_msg">
<br class="gmail_msg">
I doubt there is any chance whatsoever of that working! For a start, you<br class="gmail_msg">
can't have two machines on the same subnet with the same IP address. It just<br class="gmail_msg">
does not work. And there is all manner of internal state that would have to<br class="gmail_msg">
be replicated onto the new server.<br class="gmail_msg">
<br class="gmail_msg">
When the clicky-clicky exchange in the village where I grew up was updated to<br class="gmail_msg">
System Y sometime in the early 1990s, all the phones went dead for about 30<br class="gmail_msg">
minutes and calls in progress were cut off.<br class="gmail_msg">
<br class="gmail_msg">
--<br class="gmail_msg">
AJS<br class="gmail_msg">
<br class="gmail_msg">
Note: Originating address only accepts e-mail from list! If replying off-<br class="gmail_msg">
list, change address to asterisk1list at earthshod dot co dot uk .<br class="gmail_msg">
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