KR20080097661A
|
|
Internet phone service method using for user defined soft-phone and commercial method using for internet phone service
|
KR100859350B1
|
|
Internet phone service system using for character of celebrity and method thereof
|
KR20090001448A
|
|
Internet phone service method based on soft phone of executive file structure and apparatus thereof
|
KR20080089535A
|
|
Internet phone service system and internet phone service method using character of celebrity
|
KR20070099718A
|
|
E-commerce system using ptt function of messenger and operating method thereof
|
KR20070092453A
|
|
Messenger system for emarket place and operating method thereof
|
KR20060059583A
|
|
The method and sip data structure for presence service using sip and xml format for extended presence information
|
KR20060018996A
|
|
The system and method for making tcp channel using sip service
|
KR20060018990A
|
|
The method for making multi-party communication channel using sip service
|
KR20020090743A
|
|
A E-mail service system having a function for requesting a reply letter and a method thereof
|
KR20020090744A
|
|
A E-mail service system having secret letter box function and a method thereof
|