I'll chime in with at least one potential option. If the free SIP proxies/load balancers all fell off the table solely because of lack of stateful HA, then perhaps running your proxy/proxies on VMware vSphere and taking advantage of their Fault-Tolerance feature is an option. I haven't used it personally quite yet, however it's supposed to provide stateful failover for the entire system. Brian ----- "anorexicpoodle" <anorexicpoodle at gmail.com> wrote:
I have come across the need for a stateful SIP load balancer with fail-over and HA capabilities, and I am hoping some on this list can chime in with some personal experience.
The need is not for a particularly large volume of traffic, more to act as a socket to adapt my active/active model UM system to Metaswitch's 1:1 UM system model, which cannot support active/active application servers. Yes I felt this was a strange omission in functionality as well.
I have pretty much ruled out OpenSER/OpenSIPS/Kamilio because it isn't stateful in HA failover. Passing it through an Acme is ridiculously costly for the need i have, and most hardware based load balancers I am finding just aren't sip-aware, so I don't see them doing much better than OpenSER in a fail-over scenario, it would just be a different kind of ugliness.
Thanks in advance
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