Efficient communication through networks
Electronic switching system having call-forwarding function
Enabling interruption of communications and detection of...
Enhanced efficient telephone number portability
Enhanced service control architecture of a telecommunications sw
Establishment of connections between terminals for mobile subscr
Exchange for providing service functions for given periods...
Extended number portability database services
Extension of centrex services
Flexible direct signaling system
Flexible routing of local number portability (LNP) data in a tel
Flexible service access code (SAC)
Flexible software architecture for a call processing system
Flexible software architecture for a call processing system
Generic distributed protocol converter
Global subscriber group service system
Hierarchical switch support of services for subscribers based on
Hierarchical switch support of services for subscribers directly
Hierarchical switch support of services for subscribers of indep
Hierarchical switch support of services for subscribers of separ