I'm running an old Cisco 1751-V for years now as ISDN-SIP-Gateway. Deutsche Telekom is getting rid of ISDN more and more and lately, ISDN-VoIP config is no longer necessary on my side. Since the router handles additional duties, I deconfigured the ISDN- and VoIP-stuff with the appropriate no-command forms.
I can't do that on voice-port configurations, though:
voipgw(config)#no voice-port 0/0 % Cannot remove voice-ports this way
Q: How am I supposed to remove voice-ports?
Searching the net for the error message yields no really helpful advice. One source states that one has to remove the appropriate hardware but since I deconfigured and shut the appropriate BRI-Interfaces, I think this is not a solution applicable to remote managed devices.