Communication apparatus, server apparatus, and communication control method
S Shigeta - US Patent 8,311,566, 2012 - Google Patents
This application is a national stage of International Appli cation No. PCT/JP2006/326055
filed on Dec. 27, 2006, and claims the benefit of priority under 35 USC 119 of Japanese …
filed on Dec. 27, 2006, and claims the benefit of priority under 35 USC 119 of Japanese …
Customer premises call handling
K Freeman, DR MacPhie, NA Sheppard… - US Patent …, 2014 - Google Patents
BACKGROUND In the past, certain local telephone service providers have offered a
differentiated ringing service for households want ing to have two numbers on the same line …
differentiated ringing service for households want ing to have two numbers on the same line …
Communication device, non-transitory storage medium, and call control method
T Osanai - US Patent 9,681,274, 2017 - Google Patents
(57) ABSTRACT A communication device has a function to make a group call to a plurality of
other communication devices in a half duplex communication system. The communication …
other communication devices in a half duplex communication system. The communication …
Apparatus and method providing push to talk over cellular (PoC) dynamic service options
H Albertsson, J Holm - US Patent 8,385,848, 2013 - Google Patents
(57) ABSTRACT A method and server for establishing a push to talk type service such as
push to talk over cellular (PoC). The server receives a message from Client A indicating one …
push to talk over cellular (PoC). The server receives a message from Client A indicating one …