We have 4 CUCM in PUB-SUB scenario
1 -PUB and 3 SUBs with cucm 6.0
everything was working fine but from last few days we are facing an issue,
Phones registered with Subscriber A can communiate with phones on Subscriber B and C both
Phones registered to Subscriber B can commnicate with subscriber A but not Subscriber C
Phones registered to sub Subscriber C cannot communicate with subscriber B but they can communicate with subscriber A
There are times when subscriber C phones can communicate with Subscriber B phones but its very rare.
I have verified DB replication status and its 2
I have tried to insert phones from subscriber C Admin page and it works.
There no latency or packet drops issues between Subscriber to Subscriber and Publisher to subscriber.
Any suggestion to solve the issue.