I have a question regarding the Call routing between two UC540. Assume that the two devices are connected via a VPN-Tunnel. Both sides has its own dialplan.
Normally the Calls between two UC540 would be transfered over the WAN. But in this case the Calls should be transfered over the ISDN-Interface. Now the challenge is, to get the signalling and presence information over the WAN and the possible call over the ISDN.
Is that possible? And how can I configure it with the CCA?
In CCA3.2.1 multisite configuration is possible and allows site to site calls through a VPN tunnel. Through your description I’m not sure if you want to complete those site to site calls using a ISDN or if it is your intention to user the ISDN connection at the remote site from the main UC540W. If it is your goal to be able to use that remote ISDN connection this can be accomplished through custom dial-peers but only through CLI.
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