I have 3 CUCM in 1 group, 2 nos in HO and 1 no's in DR and in DHCP option 150 contains pub and sub1,sub2, but the IP phone is capable of accepting only 2 tftp, if incase of my pub,sub1 fails ip phones shld failover to sub2 without changing the option 150 in DHCP and refreshing the DHCP scope (i mean to say without manual intervention)
Is it any solution from cisco to accept more than 2 tftp in cisco ip phone or a virtual ip solution where i achieve the failover to DR CUCM
once phones download their config, they have the 3 CUCM servers they should try to register to.
so from your reply what i understand is if pub and sub1 are down still the registered phones will failover to sub2 in DR, but any phone which i will connect to network it will not register becz the tftp details from DHCP what the phone will receive are down.
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