ESS failover examples
Issue 1.1 June 2005 59
Using a different scenario, in Figure 24 the Link Recovery timers expired before the ESS no
service timer. The IP telephones and G350 Media Gateway connect with the alternate
gatekeeper, in this case the LSP. The no service timer expires and the IPSIs in Port Networks 1
through 8 request service from the S8700 ESS server.
The system is now fragmented between two controlling servers.
● Some functionality provided by adjuncts may be missing for users registered with the LSP.
See Feature considerations
on page 88 for more information on adjuncts.
● Users registered with the LSP may not be able to make normal station-to-station calls to
Port Networks controlled by the S8700 ESS server.