Hello
PD-SII,
The option to delete and re-create the trunk is not the correct way (in my opinion).
You can create a new trunk whilst the old trunk is still active, just make sure the registar server FQDN is not vallid (example change myprovider.com to myprovider.com
x), also the Authentication ID shoud not be the same (also add an x at the end).
Then copy the whole DID list, you can also use the reports 'inbound rules', and you can use the import DID option in the new trunk.
Once you are happy with the setup, change over the trunk by modify the existing trunk (registar server and Authentication ID) to some non valid value and correct the new trunk by deleting the last
X (registar server and Authentication ID).
This will do a fast change-over of trunk.
Then go to the outbound-rules and change the rules one by one, to the new trunk for the outgoing calls.
Do some testing in/out-bound, and when all is good, delete the 'old' trunk.
Some times delete of the old trunk is not possible if the emergency numbers are configured on the trunk, please also swap this to the new trunk.
I would normally do the trunk-setup during working hours and the trunk swap during night/off hours, to keep the work and impact as small as possible.
Good luck!
Paulo