Hi  I tried to remove UPDATE in ALLOW header in OUTBOUND INVITE (CM to carriage) after went through developer guide but could not really get it works after add below in my existing script. CM traces shows it did not remove UPDATE at all, any wrong wi...

I have cross a very strange issue and symptoms describe below: PSTN caller intermittent (2%-3% of total 300 calls per day) experienced one-way audio when call answer by UCCX agent where agent cannot hear PSTN caller but PSTN caller can hear agent. T...

Hi We recently cross an issue where one way audio when answer from hunt queued calls and call flow as below: ITSP ---sip---> CUBE(SP) --- sip--> CUCM --- sip---> ip phone PSTN caller 1 call the hunt and answer by IP phone with 2 way audio. Then 2nd ...

Hi All We recently received alerts of LowSwapPartitionAvailableDiskSpace for our CUCM 10.5 and research suggest that we are hitting a bug CSCva41819 which did not suggest any workaround to clear this alert apart from monitoring it (_https://bst.cloud...

Hi I am running CUC cluster has 1 pub and 1 sub with version 9.1.2TT1.11900-2TT1 . In Cluster Management page from publisher,  it shows publisher as Secondary and subscriber as Primary. All options under Change server status are greyed out, attached...