[cisco-voip] CUBE HA HQ and DR sites

[Mike Lydick]

Has anyone deployed SBCs at 2 or more location with the design requirement
to be Highly Available and preserve calls during a failure? Customer has 2
Cubes and will have 2 Verizon SIP trunks at 2 different geographical
locations. Provider will use round-robin for call setup and we can similar
from the CM/CUBE side. What is in question is call preservation if one cube
fails. It has been recommended to use media-flow around but not sure that
will give us the call preservation in a failure. What is the recommended
design for this. CUBE HA appears to be limited to same segment installs and
HSRP is not going to work at diverse locations for a carrier.

Best Regards,

Mike Lydick
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