| 摘要 |
<p>A method and equipment for deregistering a wireless IP access network contact address are provided. When a call corresponding to a common subscriber ID of a TE is received after the TE leaves an IP access network abnormally, the method and the equipment can avoid problems caused by still delivering the subsequent call from the IP access network according to an IP access network contact address associated with the common subscriber ID. The method includes notifying an IMS network to deregister a contact address of a TE in a first wireless IP access network through a current available access network of the TE if the contact address of the TE in the first wireless IP access network is not deregistered to the IMS network when the TE leaves the first wireless IP access network. If there is still an available wireless IP access network, the TE initiates a re-registration process to the wireless IP access network, and sends information of deregistering the first wireless IP access network to an S-CSCF entity, and then the S-CSCF entity deregisters the contact address of the TE in the first wireless IP access network.</p> |
