| 9094411 |
Mechanism to resume filter criteria at a specific point |
Angelica T. Remoquillo |
2015-07-28 |
| 8929256 |
Third party charging for SIP sessions |
Yigang Cai, Tienyu Chiu, E-Ling Lou, Bharat H. Patel |
2015-01-06 |
| 8392502 |
System and method for effecting conference calling |
Anne Yin-Fee Lee |
2013-03-05 |
| 8289885 |
Third party charging for SIP sessions |
Yigang Cai, Tienyu Chiu, E-Ling Lou, Bharat H. Patel |
2012-10-16 |
| 7586857 |
Fast network SIP/SDP procedures for conference operations upon request from end user with optimization of network resources |
Richard P. Ejzak, Chung-Zin Liu, Hong Xie |
2009-09-08 |
| 7570616 |
Mobile cellular communication device presentation of user notification of active communication session handoff between radio technologies that are not directly compatible |
— |
2009-08-04 |
| 7542556 |
Apparatus and method for providing multiple line billing in telecommunications systems |
Penny Lynne Bright |
2009-06-02 |
| 7013125 |
Replenishment of prepaid accounts during multimedia sessions |
Chinmei Chen Lee |
2006-03-14 |
| 6894715 |
Mixing video signals for an audio and video multimedia conference call |
— |
2005-05-17 |
| 6870916 |
Targeted and intelligent multimedia conference establishment services |
Chinmei Chen Lee, Stinson Mathai, Donna Michaels Sand |
2005-03-22 |
| 6850604 |
Method and system for sending a data message to a calling phone while communicating with a first phone |
Lynell Earline Cannell, Donna Michaels Sand |
2005-02-01 |
| 6819918 |
IMSI conversion method |
Terry D. Chin, Anita R. Garvert |
2004-11-16 |
| 6741678 |
Method and system for sending a data response from a called phone to a calling phone |
Lynell Earline Cannell, Donna Michaels Sand |
2004-05-25 |
