Transparent signaling for remote terminals

Details Transparent signaling for remote terminals Transparent signaling for remote terminals

H - Electricity

04

L

H04L 12/52 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2053649

A remote telecommunication terminal providing telecommunication functions identical to those functions provided by local telecommunication terminal directly connected to a telecommunications system via a direct standard link using a standard protocol. The remote telecommunication terminal is interconnected to the telecommunication system through an intervening switching system such as the public telephone network. One such remote telecommunication terminal is a remotetelemarketing terminal. A remote telemarketing terminal cooperates with the telemarketing system to establish a virtual interface on the telemarketing system. The telemarketing system views this virtual interface as being identical to a physical interface such as one connected to a local telemarketing terminal via a standard link. The remote telemarketing terminal then establishes a virtual link between itself and the virtual interface on the telemarketing system. The virtual link is established on transport channels of standard links that interconnect the remote telemarketing terminal to the switching system and from the switching system to the telemarketing system. The switching system is unaware of the establishment of a virtual link on these transport channels and does not respond to signaling information on a virtual signaling channel of the virtual link. The telemarketing system controls the telemarketing functions of the remote marketing terminal by transmitting signaling information via the virtual interface and the virtual signaling channel to the remote telemarketing terminal in the same manner as the telemarketing system controls alocal telemarketing terminal via the signaling channel of the standard links connected to the local telemarketing terminals. The standard links may be eitherISDN PRI links or BRI links and the standard protocol may be the ISDN protocol.

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