The Cisco VG202XM voice gateways are analog voice gateways for the service provider, commercial, & enterprise unified communication markets. These voice gateways provide voice connectivity to devices such as analog phones, fax machines, & modems. The Cisco VG202XM voice gateways provide support for 2-FXS ports & parity with Cisco IOS fax/modem, security, & Session Initiation Protocol (SIP) features. These voice gateways can be configured with Cisco Unified Communications Manager Express (CUCME) or Cisco Unified Communications Manager (CUCM).