24 Barring of premium rate numbers

29.1653GPPInter-IMS Network to Network Interface (NNI)Release 18TS

Based on inter-operator agreement, barring of premium rate numbers as described in 3GPP TS 24.315 [191] may be supported over the II-NNI.

If barring of premium rate numbers is supported, the "premium-rate" tel URI parameter defined in 3GPP TS 24.229 [5] clause 7.2A.17 shall be supported at the roaming II-NNI.