| Patent No. | Patent Title: |
| 8085924 | One number, intelligent call processing system |
| 8073128 | Ringback tone service opt-in and opt-out requests for use by call... |
| 8068593 | Method and apparatus for providing multimedia ringback services t... |
| 8027455 | Ringbacks based on extrinsic information |
| 8014512 | Method and system for user interaction within a queue |
| 8000451 | System and method for managing network switch transaction depende... |
| 7995710 | Telephone-receiving call center system |
| 7965700 | Method and apparatus for enabling service indicators in a call co... |
| 7936867 | Multi-service request within a contact center |
| 7924992 | Method of ensuring call processing for intelligent user |
| 7899167 | Centralized call processing |
| 7885396 | Multiple simultaneously active telephone calls |
| 7876890 | Method for coordinating co-resident teleconferencing endpoints to... |
| 7864944 | Optimal call speed for call center agents |
| 7864665 | Methods and systems for detecting IP route failure and for dynami... |
| 7860230 | Telephone call screening and routing device and related method |
| 7860228 | System and method for provisioning telephony services |
| 7852831 | Method and system for providing private virtual secure Voice over... |
| 7817645 | Method of handling phone communications and related equipments on... |
| 7813490 | Methods and apparatus for implementing customized ringback |
| 7809121 | Identification of calling devices dialing a universal number to a... |
| 7796578 | Resolution of IP addresses associated with a telephone number uti... |
| 7792253 | Communications involving devices having different communication m... |
| 7778243 | Method for DTMF transfer by RTP |
| 7778239 | Communication apparatus and computer usable medium |
| 7769155 | Ringback/ringtone synchronization system |
| 7751547 | Extending a call to a telecommunications terminal through an inte... |
| 7711104 | Multi-tasking tracking agent |
| 7697507 | Ethernet transport over a telephone line |
| 7693137 | Multi-line appearance telephony via a computer network |
| 7664251 | Abbreviated dialing between PBX and Centrex systems using a VoIP ... |
| 7653049 | IP telephone system, IP telephone apparatus and calling method |
| 7613291 | Echo path change detection using dual sparse filtering |
| 7599358 | Telephone system, its log-in management method and server device |
| 7570747 | Private branch exchange (PBX), voice store equipment, message pro... |
| 7535866 | Deployment processes for new technology systems |