| 摘要 |
PURPOSE: A system for expanding wireless channels of a wire/wireless complex communication system is provided to extend an existing pCIN and an existing pBTS for connection, when more wireless channels are necessary due to increased subscribers and extended data in a public/private communication service device, so as to expand the channels under the control of a single IP-private exchange and a call manager. CONSTITUTION: A system comprises an IP-PBX(201), a CM(Call Manager(109), and a public wireless network(141). A pBTS#1 and a pBTS#2 are expanded with U-link through a pCIN#0 connected to a pBTS. A BSC of the public wireless network(141) supports three BTSs(pBTS#0, pBTS#1, pBTS#2) through one E1. Calls connected to these three BTSs(pBTS#0, pBTS#1, pBTS#2) are mostly connected through the IP-PBX(201). Only calls that are not registered in other systems are connected to the public wireless network(141). One E1 can receive these calls. A BSC of the public wireless network(141) presents information that the pBTS#0, the pBTS#1, and the pBTS#2 are connected by a daisy chain BTS structure. |
