A method, a related apparatus, and a system for recovering a called service of a terminal are
provided. The method includes: when a called request of a user terminal is received …

A method, a related apparatus, and a system for recovering a called service of a terminal are
provided. The method includes: when a called request of a user terminal is received …

Embodiments of the present invention disclose a method, a related apparatus, and a system
for recovering a called service of a terminal. The method includes: when a called request of …

Embodiments of the present invention disclose a method, a related apparatus, and a system
for recovering a called service of a terminal. The method includes: when a called request of …

A method, a server, and a terminal for implementing call directions are provided. The
method includes sending a message including PUSH contents to a terminal, receiving a …

(57) ABSTRACT A session management method performed by a session management
network element includes receiving a first request message, where the first request message …

Disclosed is a method in which a terminal provides a Mission Critical Push To Talk (MCPTT)
service. The method includes receiving a group call announcement message by the …

A method and an apparatus for call forwarding, a terminal and a network side device are
provided in the present disclosure. The method includes: receiving a call request; receiving …

A method for callback processing in telecommunication capability opening, a
telecommunication capability opening server, a client, and a telecommunication capability …

An apparatus and method for providing a push to talk (PTT) service are provided. In a
system providing the PTT service, when a called terminal receiving a talk request message …