ISDN Q-Interface Signaling Protocol Q.931 Tunneling over the IP Network
Reduce the Cost of Private Telephony Networks
By Cisco Systems
Published 2008; Posted December 2008
Enterprises embrace new technologies to become more efficient and productive. Adoption of advanced technologies can offer the critical operating advantage necessary for the continued success of enterprises in an increasingly competitive business environment. Ideally, enterprises can deploy a technology and operate it cost effectively for an extended period of time; however, this is not usually the case. Technology continues to evolve, which forces enterprises to change the way they operate and work.
Private branch exchanges (PBXs) are crucial communication components in any organization. As an organization grows and expands to multiple locations, it needs to establish multiple PBXs to keep the locations connected. The primary challenge in operating these multiple PBXs is to get them to work as a single entity so that the user experience is consistent and reliable irrespective of location. For example, when a single voicemail system is installed at headquarters, it needs to be accessible to all remote employees as if they are accessing it locally. To achieve such operation, the PBXs must be connected.
As discussed here, the Cisco®
Q-Interface Signaling (QSIG) tunneling-over-IP feature, which provides the
capability to tunnel QSIG protocol messages over an IP network, is an excellent
example of a new technology that it is redefining the telecommunications system
for enterprises that want to significantly reduce their telecommunications costs
without losing existing features. Moreover, it introduces many other
opportunities, such as migration to IP-telephony, convergence of voice & data
network together, having rich media communication, deployment of unified
communication systems etc.
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