> Hello, > > I work on the international team for BT and I am trying to compose an > internal document showing standards for international CLI delivery, > both for C7 (TDM) and SIP, voice calls. I believe the IETF is the SIP > equivalent of the ITU standards, so hopefully you will be able to help > with my query. > > I am trying to understand when dialling an international destination > what is the correct CLI that should be displayed on the B end users > handset. Is it either the P-asserted Identity (PAID) or the FROM? > Assuming both are sent, both are unrestricted, and the supplier used > is trusted. > > I have conflicted information from different suppliers, and it seems > to differ per country. If you can provide advice on what the standard > should be that would be really useful. > > Thanks, > > Matt Matthew Pearson International Traffic Management Service Assurance Group: 00800 8261 4354, opt 1, opt 1 Email: Matthew.Pearson@xxxxxx Web: www.bt.com