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This may be possible but it really depends on:
- If the endpoints use TCP for the SIP connection then they may detect the cluster failover (as the TCP connection closes, possibly with a FIN)
- If the endpoints generate SIP traffic (eg: reregistering) then the lack of response or out of sequence response may cause the endpoint to terminate RTP connections
Telium does not provide assistance for creating this type of configuration – but we know clients have made this work. Telium only endorses the method used by HAAst OEM edition, as this is the only proper means for call continuity.