I have strange issue with VOIP calls between two sites, the issue is when I dial from site B to site A the call is going fine, but when I call from site A to site B also is going fine except with Cisco IP Phone 7945 once they answer the call immediately goes down but If I try to reach another phone type all calls going fine ……any suggestion why 7945 drops calls, here is my setup details:
Site A info:
-Call Processing : CUCM 7.0
-Cisco IP Phones 7941 , 7911 & 7970
-Cisco IP Phones is registered as SIP with CUCM 7.0
The main problem is that the systems were never meant to be networked.
Q. Can the Cisco Unified Communications 500 Series be networked with Cisco Unified CME or Cisco Unified Communications Manager? A. The Cisco Unified Communications 500 Series can be networked with an integrated services router-based Cisco Unified CME, but the Cisco Unified Communications 500 Series does not work with Cisco Unified Communications Manager.
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.