Do you see the call hit the router at site 1? If you setup the call while you use the "debug voice ccapi inout" command on the router at site 1 you should be able to read through it and find what dial-peers are matching on the inbound (voip) and outbound (pots) dial-peers allowing you to see what is not matching or routing correctly. You should also be able to see if a translation-pattern or something else is striping digits causing the dial string to be incorrect by the time it reaches router 1.
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.