Altigen MAXCS ACC 6.0 Administration Manual page 366

Chapter 26: Redundancy Configuration
If the board configuration for the default gateway is changed, or the license for the
•
SIP-Trunk is changed, you must reboot both the primary and secondary systems to
make the change take effect. The correct order for reboot is: 1) shut down inactive
system; 2) shut down active system; 3) start active system; 4) start the inactive
system.
HMCP installed with Softswitch is not supported if VLAN is used. This is because to
•
run HMCP, VLAN needs one additional NIC but redundancy supports only two NICs.
If the active system needs to be shut down for maintainance, control must be
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manually switched from the active system to the standby system first.
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MAXCS ACM 6.0 Administration Manual