Patent ID: 9106429
Filing Date: 2015-08-11
Classification: H04L,H04M,H04W

Abstract:
1. A method for pre-accessing a conference telephone call, comprising: performing, by a network side device, registration of a three-party conversation service for a main control party, and receiving, by the network side device, an encrypted conference telephone call initiated by the main control party; initiating, by a terminal, a call whose target is the main control party, wherein the terminal adds a call type for indicating whether the call is encrypted into a call establishment message of the call to the main control party when initiating the call; receiving and detecting, by the network side device, the call whose target is the main control party and determining, by the network side device, whether the call is an encrypted conversation according to the call type in the call establishment message, wherein if the call type is encryption, the network side device determines that the call is an encrypted conversation, otherwise the network side device determines that the call is a non-encrypted conversation; denying, by the network side device which has registered the three-party conversation service for the main control party, access of the call to the main control party if the call is a non-encrypted conversation; and allowing, by the network side device which has registered the three-party conversation service for the main control party, access of the call to the main control party if the call is an encrypted conversation.