Customer wants 12 pots lines for backup in case the PRI is down. I was thinking of using EVM-HD-8FXS/DID which will give me 8 DIDs and 4 port FXO card or FXO expension module. The question is can I make outbound calls on these lines when configured as DIDs? Is there a better solution?
You should be able to use DID trunks (as long as telco provision them as DID trunks) and set all the FXS ports to DID mode. You get 8 base FXS ports on the EVM and you can either add 6 FXO cards or add a 3 FXS/4FXO card or another 8 port FXS port daughter card (expansion module). In DID mode, you wont get any dialtone (much like FXO)
I am not sure if DID mode is available on the expansion cards. Also if you mix and match FXS and DID modes you have to take care of impedance settings. Check this link
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.