Voice and Data Call Routing for Service Providers

The Cisco PGW 2200 is a carrier-class call agent that performs the signaling and call-control tasks (such as digit analysis, routing, circuit selection, and more) within the Public Switched Telephone Network (PSTN) gateway infrastructure. Taking advantage of a vast Signaling System 7 (SS7) protocol library and supporting industry-standard control protocols, including Media Gateway Control Protocol (MGCP), H.323, and Session Initiation Protocol (SIP), the Cisco PGW 2200 provides service providers with the capability to seamlessly route voice and data calls between the PSTN and New World packet networks.

The Cisco PGW 2200 consists of up to five different elements:

• Cisco Media Gateway Controller (MGC) software, running on Sun Microsystems general computing platforms - required
• Cisco IP Transfer Point - LinkExtenders (ITP-Ls) - required
• LAN switch for IP interconnectivity of Cisco PGW 2200 elements - required
• H.323 Signaling Interface (HSI) adjunct processor- optional
• Management products - including the Cisco MGC Node Manager, Cisco Voice Services Provisioning Tool (VSPT), and Cisco Billing and Measurement Server (BAMS) - optional

The following PSTN gateway applications are enabled by the Cisco PGW 2200:

• Voice-over-IP (VoIP) transit
• Primary Rate Interface (PRI) Grooming and Time-Division Multiplexing (TDM) Offload
• SIP PSTN gateway
• H.323 PSTN gateway
• Enterprise Services (Hosted Voice and Call Center)