Abbreviated dialing between PBX and Centrex systems using a...
Accommodation of two independent telephony systems
Active switch replacement using a single point code
Adaptive routing control method
Adaptive telephone number selection method and system
Additional direct inward dialing connection system
Adjunct call handling for accessing adjunct-based capabilities p
Advanced intelligent network (AIN) functionality for...
Agent-initiated dynamic requeing of misrouted calls in call-rout
AIN query redirection
AIN query redirection
AIN to ISDN message mapping for intelligent peripheral...
Alternate destination call redirection for telecommunications sy
Alternate network fallback for IP telephony
Alternate routing for calls requiring monitoring
Alternative treatment for AIN fault handling
Analog dialed digit unlock method and system
Analog telephone adapter and emergency proxy
Analysis method for provisioning subscribers in a next...
Anonymous call rejection override