公开(公告)号：CA2504798C

公开(公告)日：2010-03-30

申请号：CA2504798

申请日：2003-10-29

Applicant: CISCO TECH INC

Inventor： LAUX CARLOS V ,  TOOR KAMALDIP ,  DE SIQUEIRA MARCIO G ,  VALLURU SUDHAKAR S ,  HAYASHI STEVEN

IPC: H04M3/42 ,  H04L12/28 ,  H04L12/56 ,  H04M1/725 ,  H04M7/00 ,  H04M7/12 ,  H04W60/00 ,  H04W76/02 ,  H04W84/12 ,  H04W88/02 ,  H04W88/04

Abstract: A system (10) includes an enterprise network (12) having a call control system (26) that manages telephony services for wireless handsets (20). At a remote site (16) a computing device (22) establishes a secure, wireline communication session with the enterprise network (12). The computing device (22) also establishes wireless, packet-based links with one or more handsets (20). The device (22) acts as a relay to enable the handsets to receive telephony services managed by the enterprise network (12) even though outside of the service area of the enterprise network (12).