I am network administrator and I am handling IP telephony in the premises. Voip network consists of MGCP gateway(c2821) ,callmanager 4.1 and cisco 7840 phones. MGCP gateway is also connected to pots line terminated on FXO card from PBX. Whenever anybody dials no. towards ip phone via pots phone, user sitting in front of ip phone is not able to view caller id on ip phone. Message displayed is incoming call from unknown number. Even I checked on PBX caller id feature is enabled on PBX side. Kindly let me know how to resolve this issue.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.