I have CiscoAS5400HPX, terminate calls via E1's to UK-mobile
calls originate from landline international.
BT is my E1 provider.
BT enabled CLIP but still showing E1 DID instead of International CLI.
if I enable CLIR then it work okay and shows as unknown number
But when enable CLIP then only show E1 DID instead of caller number CLI
This BT E1 signalling is analog or digital? As it could affect on your configuration. Could you paste your config file over here especially on E1 parts for my review?