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Unable to see the caller name on the IP phone for inbound calls on Cisco CallManager Express with the PRI

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Core Issue

On a Cisco CallManager Express, the phone number of the caller appears on inbound calls for the Primary Rate Interface (PRI), but the name of the caller does not appear.

Resolution

In order to fix the problem, use the isdn supp-service name calling command in interface configuration mode under pri D channel interface.

Refer to this example:

configure terminal
interface serial 0/0/0:23
isdn supp-service name calling