| 摘要 |
An apparatus in one example has: a predetermined tunnel that operatively couples a UE and a firewall; and the predetermined tunnel structured to convey at least signaling messages. The embodiments according to the present method and apparatus provide a solution for signaling security of IP multimedia services that is compatible with firewalls. For example, such embodiments establish an IPsec or SSL/TLS tunnel between the UE and the firewall, instead of an end-to-end IPsec or SSL/TLS connection between the UE and the CSCF. |
