Method and a proxy-call session control function node for deregistration of a user equipment from an internet multimedia subsystem

L Guo, P Ferngren, J Holm - US Patent App. 14/383,806, 2015 - Google Patents
The present invention relates to a method for deregistration of a UE from an IMS, the
deregistration being initiated from and performed by a P-CSCF node. The present invention …

METHOD AND A PROXY-CALL SESSION CONTROL FUNCTION NODE FOR DEREGISTRATION OF A USER EQUIPMENT FROM AN INTERNET MULTIMEDIA …

L Guo, P Ferngren, J Holm - US Patent App. 14/383,806, 2015 - freepatentsonline.com
METHOD AND A PROXY-CALL SESSION CONTROL FUNCTION NODE FOR
DEREGISTRATION OF A USER EQUIPMENT FROM AN INTERNET MULTIMEDIA SUBSYSTEM …