US 7,376,124 B2
Voice over internet protocol gateway and a method for controlling the same
Dae-Hyun Lee, Suwon-shi (Korea, Republic of); and Jung-Gi Kim, Suwon-shi (Korea, Republic of)
Assigned to Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do (Korea, Republic of)
Filed on May 20, 2002, as Appl. No. 10/150,071.
Claims priority of application No. 2001-29286 (KR), filed on May 26, 2001; and application No. 2001-69603 (KR), filed on Nov. 08, 2001.
Prior Publication US 2002/0176374 A1, Nov. 28, 2002
Int. Cl. H04L 12/66 (2006.01)
U.S. Cl. 370—352 15 Claims
OG exemplary drawing
 
1. A voice over Internet protocol (VoIP) gateway, comprising:
a foreign exchange office (FXO);
a foreign exchange station (FXS);
a VoIP processor; and
controller means for setting the VoIP gateway to one of a TANDEM (trunk and ENM (ear and mouth)) mode and a standalone mode for transmitting an incoming call from the VoIP processor to the FXO and an outgoing call from the FXS to the VoIP processor in the TANDEM mode, and for transmitting an incoming call from the VoIP processor to the FXS and an outgoing call from the FXS to the VoIP processor in the standalone mode.