Zoomint
Deploy zoom qm suite and utilize cisco unified survivable remote site telephony (srst) to ensure connectivity
http://www.zoomint.com/en/supported-platforms/deployment-scenarios/disaster-recovery-support/cisco-unified-survivable-remote-site-telephony-srst
Gregsowell
Gregsowell
http://gregsowell.com/?p=313
Youtube
High level explanation of srst
http://www.youtube.com/watch?v=i7sup5H3-bM
Centralpoint
Lic/featsurvivable remote telephony 250u
http://www.centralpoint.nl/telefoons/cisco/lic-featsurvivable-remote-telephony-250u-art-fl-srst-250-num-673742
Cisco
Improve business continuity and customer satisfaction with reliable communications using cisco unified survivable remote site telephony.
http://www.cisco.com/en/US/products/sw/voicesw/ps2169/index.html
Documentatie
Documentatie
http://www.cisco.com/univercd/cc/td/doc/pcat/srstele.htm