To reduce network expenses by eliminating T1/E1 voice circuits between remote enterprise offices, while retaining all central site PBX features that are not supported by VoIP, such as voice mail, caller ID, Direct Station Select (DSS) and Busy Lamp Field (BLF).

Our Solution

RAD’s Vmux product line utilizes TDMoIP (CV) technology to extend voice circuits (including signaling) transparently over IP networks and therefore eliminate the need for expensive T1/E1 voice circuits between enterprise offices. Transparent support for standard and proprietary signaling protocols, including ISDN PRI, Q.Sig and DPNSS, is important for the enterprise because it protects their investment in legacy PBXs and provides an evolutionary and simple means of supporting all phone features without expensive “forklift” upgrades. Enterprises can enjoy the benefits of VoIP, i.e., the ability to leverage a converged packet transport, without having to implement IP PBXs.

Business processes are not affected and there is no need to retrain users.

In this application TDMoIP (CV) performs voice compression and silence suppression, before aggregating and multiplexing multiple voice channels into a single IP bundle. This combination provides a solution that uses less overhead and bandwidth than VoIP and is more tolerant of packet loss, latency and jitter. Therefore, the Vmux is ideal for applications where bandwidth is constrained (e.g. 802.11b wireless, cable, xDSL, Power Line Communications (PLC) or even the public Internet). Integrated Ethernet switches and optional analog voice interfaces in the Vmux-110 and Vmux-2100 simplify deployment at remote locations with a single box supporting all applications.