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 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 …

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 …

Embodiments of the present disclosure relate to a method and an apparatus for a restoration
of a proxy call session control function, P-CSCF. A first aspect of the present disclosure …

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

Embodiments of this application provide a method and an apparatus for processing a
terminal that is performing a voice service, and a communications system. In the method, a …

Embodiments of the present invention provide a call hold method and a terminal. The
method includes: when an originating call of a terminal triggers a CS Voice service, sending …

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 …