# Network Architecture

The 3G-324M over IP feature provides the ability to transmit and receive H.223 over IP data streams in Video Access, using NbUP as a framing protocol. This functionality is provided through the introduction of several new components, integrated in NaturalAccess and Video Access frameworks:

- NbUP Endpoint and Clear Channel are added to NaturalAccess MSPP Service.

- BICC Call Control Signaling is performed through a TX 4000 board and functions.

- A BCF library is provided for IP Bearer Control on top of BICC.

- A new version of Video Access video mail sample application (vmsamp_ip324m_bicc) is provided to demonstrate these components.

The following illustration shows where a server based on the Video Access Toolkit 3G-324M over IP technology could be connected in a 3GPP Release4 core Network:

With Video Access Toolkit 3G-324M over IP technology, you can build servers that terminate:

- The Nb Interface: H223 framed with NbUP over RTP bearer

- The Nc Interface: BICC Call Control and BICC Bearer Control over SIGTRAN

Note: An IP324M Server based on Dialogic technology could also be configured as a gateway between the 3GP Release 4 BICC network and a SIP network.