Question

A CCNP Collaboration engineer is deploying globalized call routing across a multinational Cisco UCM cluster. All internal routing uses +E.164 in a single global partition. An inbound PSTN call arrives on a gateway in the London site with the called party number '02071234567' (national format for a UK DID). The engineer needs the call to route to the destination phone, whose DN is provisioned as '+442071234567'. Where should the engineer apply the transformation to convert the incoming national number into +E.164 before digit analysis?

Accepted Answer

An Incoming Called Party Settings prefix/transformation on the gateway or trunk to convert the national number to +E.164

Answer

A Called Party Transformation Pattern applied to the phone's device pool egress

Answer

A Calling Party Transformation CSS on the inbound gateway

Answer

A translation pattern in the global +E.164 partition that strips the leading zero only