Given that I need to provide 8 voices at one site by using 2 x router 1750, are there workarounds that I can assign one telephone number for all 8 lines instead of 2 numbers (normally each 1750 supports 4 voice max. with one telephone no.)
The router will pick dial peer 1 as preference 1, and limit the number of calls to 4 (using the max-conn 4 command). Any more calls to the same number will then roll over to dial-peer 2 which points to the second router.
If you are using SIP, then you can set either the SIP UA or the proxy to send forking message to all the edge devices, which is in your case the 1750 routers and who's ever pickup first receives the call.
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.