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## Related Documentation

- Voice Compression Module Overview
- 4WE&M Interface Module with VComp Bundles Overview
- 2W-FXS and 2W-FXO Interface Module with VComp Bundles Overview
- T1/E1 Interface Module with VComp Bundles Overview

# VComp Bundle Overview

Voice compression (VComp) bundles compress and aggregate voice channels going between the same IP endpoints into a single IP flow.

Figure 1 shows the common voice architecture and key components of the CTP Series.

Figure 1: CTP Series Voice Architecture and Key Components

As shown in Figure 1, VComp bundles support the following applications:

- PBX interconnect—The 4W-E&M interfaces enable CTP devices to connect directly to analog PBX voice switch trunks and interconnect those trunks over the IP/MPLS network. Interworking between 4W-E&M and T1 or E1 DS0s enables small analog sites to be aggregated into larger digital T1 or E1 PBX voice switches.
- PBX extension—The 2W-FXS and 2W-FXO interfaces enable CTP devices to connect directly to two-wire analog PBX voice switch interfaces to extend the phone extension over the IP/MPLS network. Interworking between 2W-FXS and 2W-FXO to T1 or E1 DS0s enables small analog sites to be aggregated into larger digital T1 or E1 PBX voice switches.

## Related Documentation

- Voice Compression Module Overview
- 4WE&M Interface Module with VComp Bundles Overview
- 2W-FXS and 2W-FXO Interface Module with VComp Bundles Overview
- T1/E1 Interface Module with VComp Bundles Overview

#### Published: 2010-10-27

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