摘要 |
A method of installing a default dialing or numbering plan identity into a user terminal comprising an IMS client. The method comprises, at or following registration of a user of the user terminal to an IMS network, receiving at the terminal from the network a dialing or numbering plan identity and saving the identity as a default identity at the terminal, wherein the default dialing or numbering plan identity is subsequently used by the IMS client as a phone context. |